They'd probably just stick it in a truck and hit a major banking center- NY, LA, London, Paris, Berlin, maybe Tokyo.

And the area of effect at such a low altitude would be pretty small. It's easier just to stick it in a light plane and simulate an airburst from a stealthed warhead, then sit back and watch the fun.
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-IronRaven

When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.