There's some serious legal issues involved in revealing your FB password. If the prospective employer uses it to log on to your account, FB has been threatening to sue them for hacking as they are not the account owner. I'm hoping some of these accounts are successful as that might quash this BS.

There are some things that just are not legal to ask in an interview, and there are some things that are gray. This one, currently, is not legal. I signed on to FB years ago and stopped using it very quickly when I saw their total disregard for user privacy, but I didn't delete my profile so I could on occasion check up on friends or let people know when my wife was playing with a celtic music group in Phoenix, and that's about it. Aside from that, I've deleted all my posts from FB.