Clarence Henry had a conviction for shoplifting and four Social Security numbers on his record. Naturally, the Transportation Security Administration hired him to search checked baggage for bombs and other contraband. And just as naturally, he was eventually arrested for stealing from those bags, according to CBS News. The TSA still hasn't conducted background checks on many of its employees, and those checks only weed out people convicted of felonies. People with misdemeanor convictions, even for stealing, might still be hired, though the agency claims to have a "zero tolerance" policy for theft.