Previous news stories? Such as unauthorized access of Sarah Palin's email.
If I break into google and poop on the floor of their server room, I can be arrested, but if one of their sysadmins gets in with their key and then poops on the floor of the server room, they can only be fired.
http://www.justice.gov/criminal/cybercrime/ECPA2701_2712.htm
Even if it's not, I maintain that if you've done something that seems like it might be illegal, they can usually find something to charge you with.