Inside the secret world of federal air marshals
Air Marshals
Credit: Josh Stephen / WFAA
Former Dallas police officer Tony Metcalf is now a supervisor in the Federal Air Marshal Service.
Other News
AP: Names of those killed in Oklahoma tornado
London machete attack could be linked to terrorismBroke no laws IRS official says, then takes 5th
FBI: Man fatally shot in Boston bombing probe 
Round Rock police arrest two-time bank robber
