Hiển thị các bài đăng có nhãn Mexican. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn Mexican. Hiển thị tất cả bài đăng

Thứ Sáu, 24 tháng 2, 2012

Mexican researchers patent heroin vaccine

MEXICO CITY (Reuters) - While Mexico grapples with relentless drug-related violence, a group of Mexican scientists is working on a vaccine that could reduce addiction to one of the world's most notorious narcotics: heroin.

Researchers at the country's National Institute of Psychiatry say they have successfully tested the vaccine on mice and are preparing to test it on humans.

The vaccine, which has been patented in the United States, works by making the body resistant to the effects of heroin, so users would no longer get a rush of pleasure when they smoke or inject it.

"It would be a vaccine for people who are serious addicts, who have not had success with other treatments and decide to use this application to get away from drugs," the institute's director Maria Elena Medina said Thursday.

Scientists worldwide have been searching for drug addiction vaccines for several years, but none have yet been fully developed and released on the market.

One group at the U.S. National Institute on Drug Abuse has reported significant progress in a vaccine for cocaine.

However, the Mexican scientists appear to be close to making a breakthrough on a heroin vaccine and have received funds from the U.S. institute as well as the Mexican government.

During the tests, mice were given access to deposits of heroin over an extended period of time. Those given the vaccine showed a huge drop in heroin consumption, giving the institute hope that it could also work on people, Medina said.

Kim Janda, a scientist working on his own narcotics vaccines at the Scripps Research Institute in La Jolla, California, said that based on some earlier research papers he had read, the Mexican vaccine could function but with some shortcomings.

"It could be reasonably effective but maybe too general and affect too many different types of opioids as well as heroin," Janda said.

Mexico, a major drug producing and transit country for drugs smuggled into the United States, has a growing drug addiction problem. Health Secretary Jose Cordoba recently said the country now has some 450,000 hard drug addicts, particularly along the trafficking corridors of the U.S. border.

Mexican gangsters grow opium poppies in the Sierra Madre mountains and convert them into heroin known as Black Tar and Mexican Mud, which are smuggled over the Rio Grande.

Every year, the heroin trade provides billions of dollars to gangs like the Sinaloa Cartel and the Zetas. Since 2006, cartel violence has claimed the lives of over 47,000 people in Mexico.

(Additional reporting by Jorge Lebrija; Editing by Anthony Boadle)


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Thứ Năm, 23 tháng 2, 2012

Guards Implicated in Mexican Gang Violence in Prison

Just after the men made their escape into the surrounding mountains, more guards opened more doors. This time, they let inmates belonging to the Zetas criminal gang surge from Cellblock C into Cellblock D, where their rivals in the Gulf Cartel were sleeping.

Over the next hour, Nuevo León State officials say, 44 prisoners — all believed to be part of the Gulf Cartel — were bludgeoned, beaten and stabbed to death.

Only two hours after the events began Sunday did jail officials at the Apodaca Prison alert state officials and the army.

“By the time we had the call for help, it was already past 3 in the morning, two hours after the escape and the fight,” said Jorge Domene, the state security spokesman, describing Sunday morning’s events. “By the time help arrived in response to the call, almost all the deaths had taken place,” he said, indicating that prison security cameras showed that more than 200 inmates had participated in the killings.

Officials in Nuevo León State said the jailbreak and the massacre had been carried out by the Zetas, the violent gang of drug enforcers who have turned against their former bosses in the Gulf Cartel and spread their reach over large parts of northern Mexico and the Gulf Coast.

The Zetas appeared to have the authorities at the Apodaca prison under their control. Investigators continued to question security guards Tuesday, and Mr. Domene told a radio interviewer that as many as 16 guards and officials had been implicated, including the prison’s warden, Gerónimo Miguel Andrés Martínez, and its chief of security, Óscar Deveze Laureano.

At least nine guards confessed to aiding the escape and the massacre directly and admitted that they had received $780 to $1,560 a month from the Zetas.

Officials said Tuesday that two men and a woman were stabbed to death Monday as they were waiting to be admitted to the Topo Chico jail, which is also in the state of Nuevo León.

The violence and corruption in Mexico’s overcrowded prison system have burst into public view with regularity since President Felipe Calderón started his crackdown on drug gangs more than five years ago.

In May 2009, 53 prisoners, many of them Zetas, walked out of a jail in the state of Zacatecas as guards looked on. In December 2010, 151 prisoners escaped from the jail in Nuevo Laredo, across the border from Texas. In July that year, the director of a prison in the northern city of Gómez Palacio was accused of allowing gangs out of the prison to commit murder-for-hire jobs using prison guards’ weapons and vehicles.

Of the 30 men who escaped early Sunday, 25 were convicted of federal crimes, said the Nuevo León governor, Rodrigo Medina. Among the escapees was Óscar Manuel Bernal Soriana, known as the Spider. Officials said he was a local Zeta leader with a reputation for bloodthirstiness who may have planned the jailbreak and ensuing massacre.

In his first comments on the Apodaca incident, Mr. Calderón said Tuesday that the prison systems in some states were “in crisis” and that the federal government was building new prisons, “an effort that has not been made in 20 years in Mexico.”


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Thứ Tư, 15 tháng 2, 2012

Immigration Upended | The Yo-Yo Effect: Mexican Immigrants Repeatedly Brave Risks to Resume Lives in United States

AGUA PRIETA, Mexico — "My wife, my son — I have to get back to them," Daniel kept telling himself, from the moment he was arrested in Seattle for driving with an expired license, all the way through the deportation proceeding that delivered him to Mexico in June.

Nothing would deter him from crossing the border again. He had left his hometown at 24, he said. Twelve years later, he spoke nearly fluent English and had an American son, a wife and three brothers in the United States. "I’ll keep trying," he said, "until I’ll get there."

This is increasingly the profile of illegal immigration today. Migrant shelters along the Mexican border are filled not with newcomers looking for a better life, but with seasoned crossers: older men and women, often deportees, braving ever-greater risks to get back to their families in the United States — the country they consider home.

They present an enormous challenge to American policy makers, because they continue to head north despite obstacles more severe than at any time in recent history. It is not just that the American economy has little to offer; the border itself is far more threatening. On one side, fences have grown and American agents have multiplied; on the other, criminals haunt the journey at every turn.

And yet, while these factors — and better opportunities at home — have cut illegal immigration from Mexico to its lowest level in decades, they are not enough to scare off a sizable, determined cadre.

"We have it boiled down to the hardest lot," said Christopher Sabatini, senior director for policy at the Council of the Americas.

Indeed, 56 percent of apprehensions at the Mexican border in 2010 involved people who had been caught previously, up from 44 percent in 2005. A growing percentage of deportees in recent years have also been deported before, according to Department of Homeland Security figures.

For the Obama administration, these repeat offenders have become a high priority. Prosecutions for illegal re-entry have jumped by more than two-thirds since 2008. Officials say it is now the most prosecuted federal felony.

President Obama has already deported around 1.1 million immigrants — more than any president since Dwight D. Eisenhower — and officials say the numbers will not decline. But at a time when the dynamics of immigration are changing, experts and advocates on all sides are increasingly asking if the approach, which has defined immigration policy since 9/11, still makes sense.

Deportation is expensive, costing the government at least $12,500 per person, and it often does not work: between October 2008 and July 22 of this year, Immigration and Customs Enforcement spent $2.25 billion sending back 180,229 people who had been deported before and come back anyway. Many more have returned and stayed hidden.

Some groups favoring reduced immigration say that making life harder for illegal immigrants in this country would be far more efficient. They argue that along with eliminating work opportunities by requiring employers to verify the reported immigration status of new hires, Congress should also prohibit illegal immigrants from opening bank accounts, or even obtaining library cards.

"You’d reduce the number of people who keep coming back again and again," said Bob Dane, a spokesman for the Federation for American Immigration Reform. The alternative, says Doris Meissner, the country’s top immigration official in the mid-1990s, is to accept that illegal immigrants like Daniel "are people with fundamental ties to the United States, not where they came from."

"Our societies are so deeply connected," Ms. Meissner said, referring primarily to the United States and Mexico, the main source of illegal immigrants. "And that is not reflected at all in policy."

The administration acknowledges that immigrants like Daniel are rooted in the United States and typically have otherwise clean criminal records. But under its new plan introduced in August — suspending deportations for pending low-priority cases, including immigrants brought to the United States as children — repeat crossers are singled out for removal alongside "serious felons," "known gang members" and "individuals who pose a clear risk to national security."

Administration officials say they are trying to break the "yo-yo effect" of people bouncing back, as mandated by congress when it toughened laws related to illegal re-entry in the 1990s.

But some experts argue that this commingling actually undermines security. After a decade of record deportations, critics argue, it has become even harder to separate the two groups that now define the border: professional criminals and experienced migrants motivated by family ties in the United States.

"If you think drug dealers and terrorists are much more dangerous than maids and gardeners, then we should get as many visas as possible to those people, so we can focus on the real threat," said David Shirk, director of the Transborder Institute at the University of San Diego. "Widening the gates would strengthen the walls."

Crime and the Border

The border crossers pouring into Arizona a decade or two ago were more numerous, but less likely to be threatening. David Jimarez, a Border Patrol agent with years of experience south of Tucson, recalled that even when migrants outnumbered American authorities by 25 to 1, they did not resist. "They would just sit down and wait for us," he said.

Over the past few years, the mix has changed, with more drug smugglers and other criminals among the dwindling, but still substantial, ranks of migrants.

The impacts are far-reaching. In northern Mexico, less immigration means less business. Border towns like Agua Prieta, long known as a departure point, have gone from bustling to windblown. Taxis that ferried migrants to the mountains now gather dust. Restaurants and hotels, like the sunflower-themed Girasol downtown, are practically empty. On one recent afternoon, only 3 of the 50 rooms were occupied.

"In 2000, we were full every day," said Alejandro Rocha, the hotel’s manager.

New research from the University of California, San Diego, shows that crime is now the top concern for Mexicans thinking of heading north. As fear keeps many migrants home, many experienced border guides, or coyotes, have given up illegal migration for other jobs.

In Tijuana, across the border from San Diego, one well-known coyote is now selling tires. In Nogales, the largest Mexican city bordering Arizona, power has shifted to tattooed young men with expensive binoculars along the border fence, while here in Agua Prieta — where Mexican officials say traffic is one-thirthieth of what it once was — the only way to get across is to deal with gangs that sometimes push migrants to carry drugs.

It is even worse in Matamoros, across from Brownsville, Tex. Just standing at the border fence brings out drug cartel enforcers demanding $300 for the right to pass. Migrants and the organizations that assist them say cartel lieutenants roam the shelters, looking for deportees willing to work as lookouts, earning $400 a week until they have enough to pay for passage north.

"I was thinking about doing it, too," said Daniel, looking down. "But then I thought about my family."

American law enforcement officials say the matrix of drugs, migration and violence has become more visible at the border and along the trails and roads heading north, where more of the immigrants being caught carry drugs or guns — making them more likely to flee, resist arrest or commit other crimes.

"There’s less traffic, but traffic that’s there is more threatening," Mr. Jimarez, the border agent, said.

Larry Dever, the sheriff of Cochise County, Ariz., which sits north of Agua Prieta, agreed: "The guys smuggling people and narcotics now are more sinister."

His county, 6,169 square miles of scrub brush, ranches and tiny towns in the state’s southeast corner, has been an established crossing corridor since the mid-1990s. Since 2008, the police there have tracked every crime linked to illegal immigrants, in part because state and federal officials frequently requested data, treating the county as a bellwether of border security.

Indeed, when a Cochise rancher named Robert Krentz was killed in March 2010 after radioing to his brother that he was going to help a suspected illegal immigrant, the county quickly became a flash point for a larger debate that ultimately led to SB 1070, the polarizing Arizona bill giving the police more responsibility for cracking down on illegal immigrants.

Yet, crime involving illegal immigrants is relatively rare (5 percent of all local crime, Sheriff Dever said). Mostly it consists of burglaries involving stolen food. And, public records show, in 11 of the 18 violent crimes linked to illegal immigrants over 18 months, immigrants were both the victims and attackers.

This is not the portrait given by Republican border governors, including Rick Perry of Texas, a presidential candidate who recently said that "it is not safe on that border." But while Mexican drug cartels have increased their presence from Tucson to New York — sometimes engaging in brutal violence after entering the country illegally — Americans living near the border are generally safe.

A USA Today analysis of Texas, Arizona, New Mexico and California in July found that crime within 100 miles of the border is below both the national average and the average for each of those states — and has been declining for years. Several other independent researchers have come to the same conclusion.

But the border is not safe for people crossing or patrolling it. The number of immigrants found dead in the Arizona desert, from all causes, has failed to decline as fast as illegal immigration has, while assaults on Border Patrol agents grew by 41 percent from 2006 to 2010, almost entirely because of an increase in attacks with rocks. The heightened risks have stimulated a debate: Has the more aggressive approach — bigger fences, more agents and deportations — contributed to, or diminished, the danger?

Sheriff Dever, lionized as an "illegal immigration warrior" by immigration opponents, says that increased enforcement has made Americans safer and should continue until his neighbors tell him they are no longer afraid.

But some immigration advocates contend that the government’s approach is too broad to be effective. "We have to really separate out the guy who is coming to make a living with his family from the terrorist or the drug dealer," said Peter Siavelis, an editor of "Getting Immigration Right: What Every American Needs to Know."

Home Is Where the Children Are

Deportations have muddled that delineation. In a recent line of deportees piling off a bus on the San Diego side of a metal gate leading to Tijuana, all were equal: the criminal in prison garb with the wispy goatee; the mother averting her eyes; and longtime residents like Alberto Álvarez, 36, a janitor and father of five who said he was picked up for driving without a license.

"Look, I’ve been in the U.S. 18 years," he said, slinging a backpack over his Izod shirt. "Right now, my children are alone, my wife is alone caring for the kids by herself — they’ve separated us."

During the immigration wave that peaked around a decade ago, deportations often meant something different: many deportees had not been in the United States for long; they were going home.

But now that there are fewer new arrivals, the concept of home is changing. Of the roughly 11 million unauthorized immigrants in the United States, 48 percent arrived before 2000. For the 6.5 million Mexicans in the United States illegally, that figure is even higher — 55 percent, according to the Pew Hispanic Center. There are now also 4.5 million American-born children of unauthorized immigrant parents.

Experts on both sides of the debate say this large group of rooted immigrants presents the nation with a fundamental choice: Either make life in the United States so difficult for illegal immigrants that they leave on their own, or allow immigrants who pose no threat to public safety to remain with their families legally, though not necessarily as citizens.

Steven A. Camarota, a demographer at the Center for Immigration Studies in Washington, said the government should revoke automatic citizenship for children born to illegal immigrants, and seize assets from deported illegal immigrants so they have fewer incentives to return.

President Obama, having made no progress on getting his legalization plan through Congress, has instead been trying to make enforcement more surgical. Under the new guidelines, officials will use "prosecutorial discretion" to review the current docket of 300,000 deportation cases, suspending expulsions for a range of immigrants.

Several factors prompt "particular care and consideration" for a reprieve, including whether the person has been in the United States since childhood, or is pregnant, seriously ill, a member of the military or a minor, according to a June memo that initiated the change.

The issue of "whether the person has a U.S. citizen or permanent resident spouse, child or parent" appears in the memo’s secondary list of factors to consider. But it is not clear how broadly leniency will be applied. Repeat crossers are given a special black mark, and the administration has already deported hundreds of thousands of minor offenders, despite claiming to focus on "the worst of the worst."

Several Democratic governors and law enforcement officials are particularly angry about Secure Communities, a program to run the fingerprints of anyone booked by the police to check for federal immigration violations. A large proportion of those deported through this process — 79 percent, according to a recent report by the Benjamin N. Cardozo School of Law at Yeshiva University — were low-level offenders, often arrested for traffic violations.

Administration officials dispute that, saying the ratio of serious criminals is increasing, and that ultimately they must enforce immigration law against all violators. They have mandated that the program be used nationwide by 2013.

Mexico’s border cities offer a portrait of what that could mean. Nearly 950,000 Mexican immigrants have been deported since the start of fiscal 2008. And in Tijuana — a former hub for migrants heading north, which now receives more deportees than anywhere else — the pool of deportees preparing to cross again just keeps growing.

Maria García, 27, arrived here after being deported for a traffic violation. She said she had spent six years living in Fresno, Calif., with her two Mexico-born sons, 11 and 7. She was one of many who said that without a doubt, they would find their way back to the United States.

"They can’t stop us," she said.

The constant flow of deportees has become a growing concern for Mexican officials, who say the new arrivals are easy recruits, and victims, for drug cartels.

One former deportee was arrested this year for playing a major role in the deaths of around 200 people found in mass graves. In Tijuana, a homeless camp at the border has swollen from a cluster to a neighborhood, as deportees flow in, many carrying stories of being robbed or kidnapped by gangs who saw their American connections as a source for ransom.

Minutes after he arrived, Mr. Álvarez, the janitor, said he was worried about surviving — "you’re playing with your life being here," he said. But his twin sons would turn 2 in a few weeks, and like many others, he said that no matter how he was treated in the United States, he would find his way back.

"I feel bad being here, I feel bad," he said. "I’ve got my kids over there, my family, my whole life. Here" — he shook his head at the end of his first day in Tijuana — "no."


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In Arizona, Border Patrols Look for Mexican Immigrants

“If you would have visited 11 years ago, it was like a scene out of a movie,” said Mario Escalante, a Border Patrol agent who used to work in the Douglas area but has since moved to the headquarters in Tucson. “We were overrun. People were coming across in groups of 30 or 50 or 100 or more. We were catching thousands of people a day.”

As darkness fell on this border town in the southeast corner of Arizona, the radio inside Mr. Escalante’s Chevrolet Suburban indicated the different reality that now exists — with illegal migration down, but not out.

“Three bodies approaching the fence,” an agent reported over the radio in clipped language, using the Border Patrol slang for migrants.

“TBS,” the same voice said, reporting that the three potential crossers were now “turning back south.”

There were radio reports — all of them encrypted to keep smugglers from listening in — of people on the Mexican side climbing up the fence and peering over, only to shinny back down when they spotted the authorities.

Potential crossers were seen carrying a ladder to the fence, only to retreat once the Border Patrol made its presence known.

A night with the swing shift in the Douglas area, which used to be one of the major crossing points in Arizona, illustrated the cat-and-mouse nature of catching crossers, the permeability of the much-ballyhooed border fence and the fact that, no matter the dire rhetoric often heard in political circles, crossings at this stretch of border are nowhere near what they once were.

The radio traffic talked of “ones,” which are single crossers, and “twos,” pairs of people hustling over the fence and making their way north, and occasional “threes.”

The large groups that Mr. Escalante recalled as a junior agent were not spotted.

Fencing is part of it. Douglas used to have a modest barrier right around the port of entry. Smugglers took drugs and migrants around the edges and just ran north, playing the percentage game.

Over the years, the fences near Douglas and along the rest of the border grew in both length and height, with the United States trying various materials, among them recycled scrap metal from the military, mesh and the steel beams used today.

Some older-generation barriers blocked the view of Mexico, but the Border Patrol found those frustrating because agents could not see the migrants amassing on the other side. The new generation of border walls allows one to see across, and even reach across, into Mexico, permitting the Border Patrol’s surveillance to begin even before prospective migrants set foot on American soil. Such openness has its drawbacks though, since drug smugglers are now suspected of passing contraband across from Mexico to the United States.

Although 21 feet high in some stretches and designed to be difficult to scale, the barrier can be overcome, sometimes with ladders or ropes and sometimes by just holding on tight and climbing.

“When you say ‘wall,’ I say ‘fence,’ ” said Mr. Escalante, who grew up along the Texas border but has spent the bulk of his career in southern Arizona. “When you think wall, you think Berlin, China. You think of a big structure you can’t get across.”

The young man the authorities say was caught with the marijuana had approached the fence with two others. A package was hurled over. Two of the three people were seen turning back south. There was confusion among the agents over the whereabouts of the third man.

Agents in SUVs scrambled over the area in search of him. Agents on foot sought to cut him off at the pass. Agents on all-terrain vehicles swarmed the rugged wilderness farther along, where he would probably be headed.

Finding him was both a high-teach exercise and a low-tech one. Agents used flashlights to look for footprints in the dirt. They also dragged a device behind their vehicles to smooth out the ground and make it more obvious if someone crosses on foot. Sometimes there was confusion, as agents radioed one another to ask what the imprint was like on their boots so they did not waste time tracking a colleague.

The smugglers know all about these techniques. The young man who the authorities say was caught with the drugs had booties over his sneakers, the soles made of fluffy cloth so as to leave minimal tracks. “You like them?” he asked the agents, who stared down at his feet after arresting him in a thicket about a mile from the border.

He did not know it, but he probably would have been caught no matter what he was wearing on his feet. He was picked up on an infrared tracking device installed in a Border Patrol vehicle. An agent saw him clear as day on a monitor inside the vehicle and called out instructions to the pursuing agents, who were working in pitch dark. “You just passed him,” the agent called out to his colleagues. “He’s under that tree to your right,” he added. Eventually, the suspect was cornered.

The man was somewhere around the 325,000th illegal crosser apprehended along either the Mexican or Canadian border in the fiscal year that ended last month, the authorities said. Back in 2000, when Mr. Escalante was patrolling the line, 1.6 million people were caught trying to enter the country illegally, and an untold number got away. Over that period, the number of agents has more than doubled, which means these days that sometimes it may be six or eight agents pursuing a single crosser.

“When you get one person and he says: ‘You’re everywhere. It’s getting hard to get across,’ that’s what you want,” said Mr. Escalante, clearly relishing a break from his desk job as the agency’s spokesman for a night at the border again. “That one person could, once they are sent back, change the minds of many.”


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