[Joe Hadenuf]

FOX PATAKI: Still stating they don't know what happened......I find this a little hard to believe....

[GOPrincess]

I'm finding the combination of immediately saying it's not terrorism and hours later saying they have no idea what caused it particularly weird...

[Scott from the Left Coast]

Well, if it was a mess-up there's probably some extremely serious ass-covering (major league!) going on...with stories getting question-proofed. People will circle-the-wagons if they think heads might roll.