Well Johnson Space Center in Houston seems to be mostly closed down. I work for one of their subcontractors in a NASA facility and was told not to come to work today.

Well this will give us plenty of time to watch TV and see what the follow-up investigation turns up...

Glenn Research Facility in Cleveland is closed too.  Yesterday I was sitting in the parking lot as they evacuated the place while listening to reports about the Hopkins International Airport next door being evacuated and a plane being secured because there were suspicions that a bomb was on board.  No place to run, and the only way out is past the airport.  Got to experience first hand a small part of the terror and helplessness.