While the previous two replies state facts about US airspace and the Vatican blackout, within one 24 hour period, this is my personal take:
Arrests made in Italy, and Southeast cleared for high level arrest, and the aircraft with whomever given a clear corridor to enter the US from Europe to Andrews AFB. Probably the Southeast having the least impact to very busy Northeast airspace.
I can't tell if this is a good thing or not. Care to explain?