You might be surprised. According to the information contained in a Texas law enforcement pamphlet, just about anyone (literally) would qualify as a suspect. This has to be seen to be believed:
http://www.infowars.com/images2/ps/txps_terror_pamphlet_front.jpg
http://www.infowars.com/images2/ps/txps_terror_pamphlet_back.jpg
For more paranoia, consult these pamphlets issued by the Commonwealth of Virginia and the FBI:
http://www.virginianewssource.com/images/VATerrorismManual.pdf
http://www.infowars.com/Images/fbi_flyer.jpg
http://www.infowars.com/Images/fbi_flyer2.jpg
Included in those to watch for are (the Texas pamphlet list is much more extensive):
- "Anti-government" types (no definition provided, are limited government advocates also "anti-government"?)
- "Property rights activists" (opposition to eminent domain, perhaps?)
- "Religious extremists" (who constitutes an extremist? what beliefs are 'extreme'?)
- "'Defenders' of the US Constitution against federal government and UN (Super Patriots)"
- Those who "make numerous references to US Constitution" and/or "attempt to 'police the police'"
- sketch pads or notebooks
- maps or charts
- still or video camera
- hand held tape recorder
- binoculars
So watch those references to the Constitution (no one seems to know how many is too many), be careful of the company you keep (stay away from women and children in Texas), be sure you're not carrying around any "terrorist tools," (no more taking pictures of the Capitol building for Grandma and Grandpa) and, should you find yourself under suspicion, you can take comfort in the fact that, as an American citizen, you are essentially entitled to nothing.