Nearby Seattle is Fort Lewis, which has a whole LOTTA Army types and some Army air helos.
Nearby Seattle is Bremerton (already mentioned above.) Lotsa Navy types there.
No place to pick a fight...
As to Hanford: I have been there. Dunno about flying an airplane into a reactor--they are pretty well built, but not like today's commercial ones. These are a little 'softer.' OTOH, only one of the Hanford's six reactors is operating--all the rest are dead.
Parenthetically, the operating reactor is scheduled to be shut down soon, leaving us one heckuva problem if we ever needed to build more nukes...
That said, it's not easy to get onto the bases, so I put my money on a target like the Space Needle or something. If the explosives actually got up here.