Time's Square Bombing: Domestic Terrorism?

If you haven't heard about this yet, you can read what is going on at Gateway Pundit:

The blast, which happened around 3:45 a.m., left a gaping hole in the front window and shattered a glass door, twisting and blackening its metal frame. No one was hurt. But Police Commissioner Raymond Kelly said the device, though unsophisticated, could have caused "injury and even death."

A witness saw a person on a bicycle wearing a backpack and a hood and acting suspiciously, but no one saw the device being placed in front of the recruiting center, authorities said at a news conference.

So who knows. After reading about it, it strikes me as some disaffected military dude or someone associated with the anti-war movement or both.