A few minutes after the two men left, Slawiak said, a federal agent approached the ticket counter and began asking questions about the men.
Evidently the feds have been following him.
I wonder why they chose to arrest him now?
Good catch, nonetheless.
They know all his connections and want to see where they run once they realize he has been arrested.
Did you notice that our original response was almost the same?
The MD sniper may have "activated" him as part of his escape or travel plans.
The FBI would be watching closely for any strange phone activity or travel by their watch list suspects. If the sniper is an Al Qaeda op, the operation might cause other sleepers to go active in some capacity.