Terrorism in the USA:threat & response

[Stan]

Hey Stan: They say it was not a high explosive and I think the smoke was white. Would a black powder bomb do the trick?

Hey Carl,
I wouldn't go jumping to conclusions based on a white cloud of smoke before X-spray samples are in with forensics. Black powder, that is the real stuff made of sulfur, etc., is rare these days in ammunition like shotgun shells which contain pelletized powders. These so-called smokeless powders or even pyrodex are class C vs A and among other things easier to obtain.