Earlier this week 6 Islamic Imams were taken off a US Airways flight after what was deemed "suspicious behavior".
The mainstream media, naturally, tried to report it as "racial profiling" in action. But as more information becomes available, it has become clear that there was something up.
The Imams not only were not sitting in their own seats but had spread out in groups of 2 in every section of the plane (like the 9/11 hijackers). At least one had asked for seat-belt extenders that were simply placed on the floor (these could be used as weapons) and were very loudly (in Arabic) praising Bin Laden and condemning the United States.
This is just a list of some of the things they were doing that would almost certainly raise some suspicion.
Sounds to me that they were either up to something or they were intentionally trying to get kicked off in an effort to put pressure on US airlines to weaken security.