Quoting
John Gilmore's "Gilmore v. Ashcroft -- FAA ID challenge FAQ" (which I highly recommend reading):
Q. So then how should we figure out who is a terrorist?
It's a good question, that goes to the heart of the post-9/11 civil liberties issues.
Who is a terrorist? Any IRA member from the last twenty years? A member of the Irgun (led by former Israeli Prime Minister Menachem Begin)? Nelson Mandela, imprisoned for sabotage for 27 years by the South African government? A WTO protester? The US Government killed more Afghani civilians in the last year than the number of US people killed on 9/11; does that make US soldiers terrorists? Israel and Palestine both claim that the other is terrorist. So do India and Pakistan. So do leftists and rightists in Colombia.
Ultimately the line between "terrorist" and "freedom fighter" is a political one. Our freedom to travel should not depend on a politician's decision about whether they agree with our aims or not. Every "anti-terrorist" measure restricts people based on their politics, not just based on whether they use violence. Violence was already illegal.
In other words, any list of "terrorists" will inevitably contain many individuals that have never committed a terrorist act, and not contain many individuals that have actually committed a terrorist act.
Q. Isn't an ID check needed to stop known terrorists from flying?
If we knew who the terrorists were, we could just arrest them all, rather than stopping them when they try to fly. So what do you mean by "a known terrorist"? A previously convicted hijacker? A card-carrying member of Al-Queda? A Green Party member, who seeks to change our established form of government? Someone on probation, convicted of non-violent civil disobedience for protesting the Star Wars program at Vandenberg Air Force Base? A member of Earth First!?
There is good reason to believe that any list of "known terrorists" contains "suspected" terrorists, not actual terrorists, and is full of errors besides. Particularly when the list is secret and neither the press nor the public can examine it for errors or political biases.
"Johnnie Thomas" was on the watch list because a 28-year-old "FBI Most Wanted" man, Christian Michael Longo, used that name as an alias. But Longo was arrested two days after joining the "Most Wanted" list for murdering his family. After he had been in custody for months, 70-year-old black grandma "Johnnie Thomas" gets stopped every time she tries to fly. Her story is in the May 2002 issue of New Yorker magazine. It's not clear why an ordinary criminal like Longo was on the list in the first place -- nor why he wasn't removed from the list when he was captured two days later. What is clear is that this secret watch-list is poorly controlled and ripe for abuse. And, of course, there is no guarantee that an actual terrorist would be carrying their real ID.
There are many ways to deter terrorism, but checking IDs against a watch list is not one of them. It is an exercise in futility that provides a false sense of security.
I completely agree with these statements.
Patriotic Americans should resist this practice of restricting people's movements based on blacklists.