You think Brokaw and the NYT are left wingers??
You are so wrong. They are corporate shills and mouthpieces of the military-industrial complex. Just ask any (REAL) leftist.
Therefore, it was left wing extremists. Case closed!
What better way to be certain that the news media gives it maximum coverage?
That's the "name of the game" - to spread the "possibility of attack" as far and wide as possible.
Disruption of daily life to the nth degree.
Terrorism's base is to put people in a position of fear for the "dropping of the next shoe".