Hiding in Plain Sight

What's it like to be in the government's witness protection program? For a former Las Vegas mobster, one of the hardest parts is having to live with a strong, identifiable Chicago accent he can't seem to lose: http://www.forbes.com/sites/adamtanner/2013/07/17/infamous-mafia-hit-man-tells-how-he-rebuilt-identity-in-witness-protection-program/