Whistleblower ATF Agent John Dodson Exposes Deadly "Operation Gunrunner"

ATF Senior Special Agent John Dodson says what he was asked to do was beyond belief. An Alcohol, Tobacco and Firearms senior agent assigned to the Phoenix office in 2010, Dodson's job is to stop gun trafficking across the border. Instead, he says he was ordered to sit by and watch it happen. Investigators call the tactic letting guns "walk." In this case, walking into the hands of criminals who would use them in Mexico and the United States.