Seems that the FBI had an informant in a mosque.......He was SO radical, and so "Jihad" oriented that the attendees of the mosque informed the FBI about him....The FBI informant (provocateur).
This is the way things should go. And I am glad to see it. More of this would be a Good Thing.
For too long, the Muslim community has been inclined to protect Muslims first, and worry about things like law and order second. Obviously (at least in this case) things have changed. If enough of this sort of thing happen often enough, the muslims will effectively weed out their bad members (and the FBI informants) and gain legitimacy in the eyes of non-muslim US citizens.
One would hope that this continues, FBI informant or not.