Again, not too worried about a dusting of beryllium. Mostly because it wouldn't even be a dusting. It could be a tanker truck full of glowing green jelly floating around up there for some damn reason and, well, I might be slightly uneasy, but also feeling a little foolish about it.
It does remind me of a couple of my favorite nuclear projects, though...
Project Orion was supposed to be, essentially, a gigantic nuclear pogo-stick for launching whole cities into orbit. You drop bombs out the ass of the thing and ride the blast on up with a giant plate on springs. This would have been, I'm sure, fucking awesome. Especially if you were in one of those cities, because after the first few left I don't think I'd want to be left on the ground.
My absolute favoritest idea, though, has to be
Project Pluto, which was a goddamn unshielded nuclear reactor used as a ramjet. The idea being that this would be an excellent way of delivering a warhead. At least until it was realized that it'd be flattening and irradiating damn near everything it flew over, which was even awesomer. Unfortunately someone else realized that anyone we'd want to be nuking is on the other side of an allied nation who probably wouldn't dig this thing flying over them. Of course, by then we had ICBMs, which seem kind of like parachuting carebears on someone in comparison. It's just mind boggling to imagine people sitting in a room talking about this thing, which might actually have been the most completely, efficiently evil weapon ever conceived. Just in the process of getting somewhere to kill a bunch of people and wreck some shit it'd be incidentally killing a whole bunch of people and wrecking shit. But in case that wasn't evil enough, they had parts manufactured by Coors. No foolin.
The funniest part is probably that the atmospheric nuclear test ban treaty put the clamps on a peaceful (if nutty) project like Orion, but not Pluto, because the thing wasn't technically exploding until it got where it was going. Just, you know, giving cancer to everything it passed over that wasn't flattened by a shockwave.