The U.S. sent 238 Venezuelan migrants to a Salvadoran mega-prison. The Trump administration says they’re all gang members, but 60 Minutes could find no criminal records for 75 percent of them. “60 Minutes” is the most successful television broadcast in history. Offering hard-hitting investigative reports, interviews, feature segments and profiles of people in the news, the broadcast began in 1968 and is still a hit, over 50 seasons later, regularly making Nielsen’s Top 10.