John Torres, right, special agent with the Bureau of Alcohol, Tobacco, Firearms and Explosives, holds a Ruger Mini-14, a .53-caliber semiautomatic rifle, one of several weapons seized or bought undercover, as Los Angeles Mayor Antonio Villaraigosa, left, and City Attorney Rocky Delgadillo listen at a Los Angeles news conference after law enforcement authorities fanned out across harbor areas of Los Angeles and Long Beach, Calif. , early Tuesday, July 31, 2007, in a huge sweep of gang members aimed at taking down violent offenders. Hundreds of federal agents and local police officers took part in the campaign that started at around 4 a.m. AP Photo logo AP Photo 30 months ago

John Torres, right, special agent with the Bureau of Alcohol, Tobacco, Firearms and Explosives, holds a Ruger Mini-14, a .53-caliber semiautomatic rifle, one of several weapons seized or bought undercover, as Los Angeles Mayor Antonio Villaraigosa, left, and City Attorney Rocky Delgadillo listen at a Los Angeles news conference after law enforcement authorities fanned out across harbor areas of Los Angeles and Long Beach, Calif. , early Tuesday, July 31, 2007, in a huge sweep of gang members aimed at taking down violent offenders. Hundreds of federal agents and local police officers took part in the campaign that started at around 4 a.m.