I made a few black powder "bombs" back in my younger days. You were supposed to register for every can you bought but I knew a guy up the road that ran a small country store and he'd sell it to folks he knew for cash, no ID. I used it mostly for muzzle loaders. Then Pyrodex came out, it takes a hotter spark but it burns cleaner so black powder got scarce.

How many more are there across the country?

What a lousy report. No film of the device, nor of any agencies in boats, or the boom as the charge was set off. Plus, if it were the size of a hand grenade I seriously doubt it would have done any structural damage to the dam. Maybe chip a small amount of concrete off the face of the da., but it would come nowhere near the size to bring the dam down. Ugh, the reporters are acting like it was a big deal.

They come from CHYNA