<snip> Flying is not a right, never has been. This would be different if health care required a groping, but this is a service offered by a company that has no obligation to offer it. If you find their policies offensive, show that by not using them. People got along just fine without flight, for quite some time, i am sure we can still do so.
If i opened a restaurant that required people to be slapped in the face before entering, i should expect not to get that much buisness. But in the same sense when i tell people that the slap is required, they shouldn't be surprized when they get slapped.
Since you used the restaurant biz as an example ....
Restaurants can require people to wear shirts, shoes, etc in order to be served. But they don't have the legal right to deny a whole class of people, for example African-Americans, service. So even though restaurants are private businesses, there are still legal constraints on how they can treat customers, and people who want to be customers.
As I understand it, commercial airplane flights, like restaurants, offer a service that can't be arbitrarily granted at whim.
Here's some comments from a Wiki article on Freedom of Movement under USA law:
http://en.wikipedia.org/wiki/Freedom_of_movement_under_United_States_law
Domestic Travel:
Wiki said:
The U.S. Supreme Court also dealt with the right to travel in the case of Saenz v. Roe, 526 U.S. 489 (1999). In that case, Justice John Paul Stevens, writing for the majority, held that the United States Constitution protected three separate aspects of the right to travel among the states: the right to enter one state and leave another, the right to be treated as a welcome visitor rather than a hostile stranger (protected by the "privileges and immunities" clause in Article IV, § 2), and (for those who become permanent residents of a state) the right to be treated equally to native born citizens (this is protected by the 14th Amendment's Citizenship Clause).
International Travel:
Wiki said:
Freedom of movement is not denied unless a passenger refuses to submit to a search required by law.
In the 1800s people would move and never expect to see their families again. Those days, fortunately, are gone. I think its reasonable for people to expect to be able to freely travel to visit with family, go on business trips, seen new parts of their country and even the world, and for any reason at all.
Out of curiosity, I compared the cost and time of travel options between NYC and Chicago a few days ago. It was easy to find airplane tickets that cost less than Amtrak and Greyhound (major train and bus companies for non-USAsians) tickets. Airplane flights IIRC takes about 2,3 hours. Train and bus rides takes about 17 and 19 hours respectively. (
ETA: driving with breaks to stretch your legs, at legal speed limits

would probably take about the same amount of time.) Given the time and financial constraints of most people if you want to travel 1000 miles or more, commercial air flights are often the only practical options.
The constitution is written briefly and in general terms. While it says we have the freedom to travel, it doesn't make an itemized list of what methods of transportation are included. But, IMHO, in this day and age, commercial air flight has to be included.
Others have already addressed:
* that we have the right to expect the laws to be reasonable when it comes to submitting to a search.
* that the new procedures will not do anything to keep us safer ( this might have been in another related thread)
I won't bother to repeat what they said. I'll just add that not every scientist believes that the backscatter machines are safe. I personally think X-Rays should just be reserved for limited medical purposes and for scanning our possessions (such as suitcases and carry-ons) only. I think it is extremely unreasonable to expect people to be X-Rayed for non-medical reasons.
Here's some links:
http://www.npr.org/templates/story/story.php?storyId=126833083
http://www.whitehouse.gov/sites/default/files/microsites/ostp/ucsf-jph-letter.pdf