It would certainly seem so.
I wonder where these idiots plan to set this thing off. They will probably pick a very unlikely spot to create surprise and terror at the unexpected nature of the target.
It looks like this story has been confirmed by several different sources including Gordon Duff. It's not just one guy generating the story, it has been confirmed in a couple different venues.
I don't think this looks like cointel just to scare people. It really appears they got caught making off with it and too many people leaked it to shut them all up.
Quite a few broken arrows out there now floating around. All no doubt melted down to beat into plowshares, I am sure.