United States Federal Witness Protection Program
A high-profile RICO case sentenced John Gotti and Frank Locascio to life in prison in 1992, with the help of informant Sammy Gravano in exchange for immunity from prosecution for his crimes. Aside from avoiding long prison stretches, the FBI could put mobsters in the United States Federal Witness Protection Program, changing their identities and supporting them financially for life. This led to dozens of mobsters testifying and providing information during the 1990s, which led to the imprisonment of hundreds of mobsters. As a result, the Mafia has seen a major decline in its power and influence in organized crime since the 1990s.