Private Facebook profiles. Can an possible employer still hack into it to see the profile?

Question From User - Answers in Comments.

I have a friend trying to get a job as a police officer. He has only a facebook profile that is private and on it he plays the game Mafia Wars. Is it possible that they could break into his profile without his consent and not hire him because he plays Mafia Wars? His mom is freaking out on him and saying he will never get a job with a police agency if he continues to play that game. Is it true they can look at a private profile?