i think a big one that you may have forgotten about is APG up in Harford County. being the #1 stockpiling site for all kinds of nasty-no-good chemicals and all the weapons testing being done here, it certainly poses a rather large threat.

i seem to remember hearing a while ago that APG would probably be the #2 target for nuclear attack back in the cold war days, with DC being #1. something tells me that probably hasnt changed much.