We all know that life changed after 9/11. The Patriot Act and Patriot II, along with a compliant Supreme Court, have stolen from us much of what our forefathers bequeathed.
...an aggressive new ACLU campaign highlights a fact of which I was previously unaware: the Constitution-free zone that exists a US borders and airports actually extends 100 air miles inland and encompasses two-thirds of the country's population. The US Border Patrol can set up checkpoints anywhere in this region and question citizens.
Ars Technica has the entire frightening story.