[Judas]

Could this be a Russian plot, once more? After all they interfered (or so it seems) with the elections once.

Sure sure
Send in bombs via planes
I doubt it would work

I'm sure it would be sent from someone already inside the US, if that was the case (not that I believe it to be).

Regardless, the people responsible have achieved their goal, regardless of the fact that none of the bombs actually caused physical harm; fear.