[Iron Munro]

Not enough, you need to more like a dozen evenly spaced 10 Megaton to nail the beltway too.

I was hoping to avoid damage to the Arlington National Cemetery and the US Marines Corps War Memorial located there.

[no-s]

I was hoping to avoid damage to the Arlington National Cemetery and the US Marines Corps War Memorial

heh, they've got you foxed then...props to HL Mencken: "There is always an easy solution to every human problem - neat, plausible, and wrong."