And as usual, still too early for accurate info.
The only thing I can say is that the myth of the safe airport terminals is finally (if bloody and painfully) over. You cannot carry in the terminal of Ft. Lauderdale (or any big airport in Florida) and you cannot fart without a BSO Deputy, Homeland, ATF and Border Patrol agents complaining about the smell. Every gate has at least 2 patrols cars parked up front. Attacks to airports happened before and it was bound to happen again.