While these web posting jihadis may be jokers and hoaxes over all, some of the Arabic postings that have been translated are really creepy and I tell you, IMHO there has never been a time more likely to see a nuclear detonation on US soil than now.
While many of the posters may be hoaxers, I think the threat is very real. I am prepared to eat crow if this all turns out to be psy ops. But I am keeping potassium iodide handy 24/7 this month.
Where do I get it?