Abuse of power a problem with some air marshals

An investigation by ProPublica has found that over a dozen air marshals have been charged with crimes since 9/11, and hundreds more have been cited for misconduct.  The scope of the charges range from drunken driving to participating in a human trafficking ring.  "The Federal Air Marshal Service presents the image of an elite undercover force charged with making split-second decisions that could mean the difference between stopping a terrorist and shooting an innocent passenger.  But an examination of police reports, court records, government reports, memos and e-mails shows that 18 air marshals have been charged with felonies, including at least three who were hired despite prior criminal records or being fired from law enforcement jobs."