Are you still talking about what the laws are, or are we talking about what they should be?Depends if you post on face book or whatever that you are going to blow up the Sandy springs PD you might get arrested, If you living in Sandy springs post you are going to blow up the LAPD tonight and you don't have a plane booked you are likely to get a visit but no immediate arrest. The threat needs to be credible Why do you think Madonna wasn't arrest for saying she thought a lot about blowing up the white house. because it wasnt credible, now if it had been found she had ordered a lot of fertilizer and diesel fuel she might have a cell to sleep in tonight