From the Internet — quick reference list of actions/characteristics used to categorize people as potential terrorists. Note that affiliation with Islam is not included (at least I don't see it), while the 19 9/11 attackers were Muslim Arabs, as were the COLE attackers
Public Intelligence, January 25, 2011
EXTRACT: Departing more and more from rational depictions of truly suspicious activity, the criteria listed in law enforcement reports as indicating criminal or terrorist activity have become so expansive as to include many ubiquitous, everyday activities.
Phi Beta Iota: This is a classic example of trying to micro-manage from the top in an environment of such increasing complexity and constant change as to be completely dysfunctional at great expense.