Watch Who You Friend on Facebook- It Might Be the FBI

Well, this is scary.  You might want to be extra careful whose friend request you accept on Facebook, because it's totally possible that you might be talking to the FBI.

Told you- this is scary business.

The Feds are now joining Facebook with fake IDs in order to do everything from target suspects, to get personal info from suspects' friends and family, to corroborating alibis.

Obviously this tactic is good if you're trying to catch a bad guy, but bad news if you're just trying to post food selfies.