Read all 'mexico' posts in CBS News Investigates
April 8, 2011 5:12 PM 
Updated 11:55 p.m. ET
A top figure in the gunwalking controversy at the Bureau of Alcohol, Tobacco and Firearms (ATF) is now cooperating in the investigation.
Sen. Charles Grassley (R-Iowa) made that disclosure today in a letter to ATF's acting director Kenneth Melson.
Read Grassley's letter
ATF agent cooperates in gunwalking investigation
Sen. Chuck Grassley (R-Iowa)
(Credit: Mark Wilson/Getty Images) A top figure in the gunwalking controversy at the Bureau of Alcohol, Tobacco and Firearms (ATF) is now cooperating in the investigation.
Sen. Charles Grassley (R-Iowa) made that disclosure today in a letter to ATF's acting director Kenneth Melson.
Read Grassley's letter
March 28, 2011 4:42 PM 
(Credit: CBS) The Office of Mexico's Attorney General has issued strong, new comments in response to ATF Gunwalking allegations exposed in an ongoing CBS News investigation. As we have reported, agents from the Bureau of Alcohol, Tobacco and Firearms say over the course of a year and a half, superiors ordered them to allow thousands of weapons to cross into Mexico as part of a failed plan to gain intelligence and take down a major drug cartel.
Over the weekend, the Mexican attorney general stated: "The controlled trafficking of weapons is not authorized under the Mexican national legislation. An operation that would contemplate this would not have been acceptable to the Mexican government, and it will never be under any circumstance." The Mexican Attorney General also stated that it's conducting its own investigation to identify "the crimes that could have been carried out on Mexican territory."
Mexican attorney general says "full force of law" to be used in ATF gunwalking scandal investigation
(Credit: CBS) Over the weekend, the Mexican attorney general stated: "The controlled trafficking of weapons is not authorized under the Mexican national legislation. An operation that would contemplate this would not have been acceptable to the Mexican government, and it will never be under any circumstance." The Mexican Attorney General also stated that it's conducting its own investigation to identify "the crimes that could have been carried out on Mexican territory."
March 25, 2011 11:52 AM
ATF gunwalking: Who knew, and how high up?
by CBS News investigative correspondent Sharyl Attkisson Since our first report in which ATF agents told us they allowed thousands of weapons to cross into Mexico, one crucial question has been: Who knew -- how high up? This week for the first time, President Obama addressed the controversy. It was in an interview Tuesday evening with the Spanish language network Univision.
Watch: Obama on "gunwalking"
Watch: Obama on "gunwalking"
March 23, 2011 9:59 AM
Obama on "gunwalking": Serious mistake may have been made
Last night, a reporter from Univision asked President Obama about the subject of a CBS News investigation: allegations that ATF allowed traffickers to send weapons to Mexican drug cartels in an operation called "Fast and Furious." Insiders call the strategy letting guns "walk."
March 21, 2011 7:56 PM
ATF gunwalking scandal: Second agent speaks out
WASHINGTON - South of El Paso, Texas, on Mexico's side of the border, lies Juarez - the most dangerous city in the world. CBS News investigative correspondent Sharyl Attkisson reports ATF Special Agent Rene Jaquez has been stationed there for the past year, trying to keep U.S. guns from being trafficked into Mexico.
"That's what we do as an agency," Jaquez said. "ATF's primary mission is to make sure that we curtail gun trafficking."
Video: ATF agent describes dangers of "gunwalking"
Video: Mexico assignment "most dangerous in the world"
"That's what we do as an agency," Jaquez said. "ATF's primary mission is to make sure that we curtail gun trafficking."
Video: ATF agent describes dangers of "gunwalking"
Video: Mexico assignment "most dangerous in the world"
March 20, 2011 11:31 AM 
(Credit: ALFREDO ESTRELLA/AFP/Getty Images) The U.S. ambassador to Mexico, Carlos Pascual, has resigned under pressure.
In recent weeks, Mexico's President Felipe Calderon has said in public he doesn't trust Pascual (seen at left). Several sources close to diplomatic circles inside Mexico tell CBS News that from Mexico's viewpoint, the ATF "gunwalking" scandal was the final straw in a series of controversies.
First, Pascual has been dating the daughter of a mistrusted and alleged cartel-linked opposition legislator.
"Gunwalking" scandal final straw leading to resignation of U.S. ambassador to Mexico
(Credit: ALFREDO ESTRELLA/AFP/Getty Images) In recent weeks, Mexico's President Felipe Calderon has said in public he doesn't trust Pascual (seen at left). Several sources close to diplomatic circles inside Mexico tell CBS News that from Mexico's viewpoint, the ATF "gunwalking" scandal was the final straw in a series of controversies.
First, Pascual has been dating the daughter of a mistrusted and alleged cartel-linked opposition legislator.
March 11, 2011 8:16 PM 
Today, the U.S. Embassy in Mexico issued a statement today on allegations exposed in a CBS News investigation that Alcohol, Tobacco and Firearms (ATF) officials engaged in a controversial intelligence-gathering operation that centered on monitoring and encouraging the sale of thousands of weapons to suspected Mexican drug cartel suppliers.
There appeared to be a potential contradiction between the statements of U.S. officials saying that Mexico was aware of the operation, and Mexico officials who insist they were not.
2011 Agent: I was ordered to let U.S. guns into Mexico
Video: "Project Gunrunner" scandal
The U.S. Embassy in Mexico says there is no real contradiction because Mexico was aware of the general operation, nicknamed "Fast and Furious"; but not specifically aware of any alleged "walking" of weapons across the border.
U.S. Embassy issues "Gunwalking" statement
This is a photo provided to CBS News of an actual display put out for suspected Mexico drug cartel weapons suppliers in an undercover ATF operation in Tucson in 2008. According to court documents obtained by CBS News, ATF Agents watched as suspected gun traffickers carried at least six of the civilian version M-16's (shown on the bright blue boxes) across the border into Mexico.
There appeared to be a potential contradiction between the statements of U.S. officials saying that Mexico was aware of the operation, and Mexico officials who insist they were not.
2011 Agent: I was ordered to let U.S. guns into Mexico
Video: "Project Gunrunner" scandal
The U.S. Embassy in Mexico says there is no real contradiction because Mexico was aware of the general operation, nicknamed "Fast and Furious"; but not specifically aware of any alleged "walking" of weapons across the border.
Read more: http://www.cbsnews.com/8300-31727_162-10391695.html?keyword=mexico#ixzz1J4O3KFvz
