Meet Professor Walter F. Murphy, emeritus of Princeton University. He's a former Marine, with five years of active service and 19 years in the reserve, and a legal critic of Roe vs Wade and supporter of the Alito confirmation. He's also on the Terrorist No-Fly List:
"I presented my credentials from the Marine Corps to a very polite clerk for American Airlines. One of the two people to whom I talked asked a question and offered a frightening comment: "Have you been in any peace marches? We ban a lot of people from flying because of that." I explained that I had not so marched but had, in September, 2006, given a lecture at Princeton, televised and put on the Web, highly critical of George Bush for his many violations of the Constitution. "That'll do it," the man said."
Just a heads up about what these people are up to.