In this April 10, 2014 photo, Tony Serra, right, as he speaks next to Curtis Briggs, both attorneys for Raymond "Shrimp Boy" Chow, pictured at left, at a news conference in San Francisco. The FBI spent many millions of dollars and used more than a dozen undercover operatives posing as honest businessmen and Mafia figures alike during its seven year organized crime investigation centered in San Francisco’s Chinatown. Now, an increasing number of the defendants caught up in the probe that has ensnared a state senator and an aide are arguing that the FBI and its undercover agents are guilty of entrapment, luring otherwise honest people to go along with criminal schemes hatched by federal officials. (AP Photo/Jeff Chiu)