I saw a lot of FBI hostage Rescue Team, SWAT teams, and other police, with some national Guard vehicles with drivers, but I saw no Special Forces. The geiger counters are a standard procedure to confirm or deny the presence of any radioactivity, but there was never any suspicion of any of that in Boston.

The National Guard personnel were there under the command of the law enforcement and not under military command authority. The military in the U.S. is prohibited from conducting operations domestically unless under a presidential order.

That sort of assumption can cause an uproar here in the U.S.