Then there is the problem with "If you say something, say something".
There was one time when a lady with very fertile imagination saw an Amtrak Conductor moving six Asian looking men from one car to another to make space for a large group that was boarding at Jacksonville. She called 9-11, without even talking to any Amtrak crew because she thought that the train had already been hijacked. The net result was that an entire posse of TSA/ VIPR and whoever else they could muster on short notice together with their K9s descended upon the train as soon as it arrived in JAX.
The train was held there for 6 hours while everyone sat around and had pizza, donuts and coffee provided by the local fire department and Amtrak. Fortunately it was a clear starry night with pleasant temps.
Finally in the wee hours of the morning the train was released. They detached the last car for further investigations, and boarded everyone, including those six Asian looking men on the shorter train and proceeded North.
Everyone was relieved that another heinous terrorist attack had been nipped in the bud I am sure. I was relieved to get back in my bed for a few hours of Zzzzs before heading off to the Diner for a late breakfast. At least we got to see much of the route that is usually in dark, in bright daylight. But pine trees look surprisingly same no matter whether they are near Savannah, or Columbia or Hamlet or Raleigh.... Oh well...