Via The Left Coaster's paradox, the ACLU:

The government is turning vast swaths of our country into a “Constitution-Free Zone” in which U.S. Customs and Border Protection (CBP) is allowed to exercise extraordinary authority that would not normally be permitted under the Constitution. The government says that “the border” — where there is a longstanding view that the Constitution does not fully apply — actually stretches 100 miles inland from the nation’s “external boundary.” And increasingly, we are seeing DHS vigorously utilize that authority.

Today we held a press conference at the National Press Club here in D.C. to try to draw attention to this problem — and the fact that, as we showed, nearly two-thirds of the U.S. population live within this "Constitution-Free Zone." That’s 197.4 million people.

Coincidence? You be the judge.

CBP has been setting up checkpoints far inland — on highways in states such as California, Texas and Arizona, and at ferry terminals in Washington State. Typically, the agents ask drivers and passengers about their citizenship. People are also reporting that even after they provide passports or state driver’s licenses, CBP continues to interrogate them and try to pressure them into permitting a search. ...

I guarantee you that if these powers are not challenged, if the American people do not push back, sooner or later a factory worker in southern New Hampshire, a farmer in the Shenandoah Valley of Virginia, or yes, some guy driving across rural Wisconsin, will wake up to find that they have lost their right to go about their business, and travel around inside their own country, without interference from the authorities.

Of course, we have Democrat Joe Lieberman to thank for DHS, just as we have Democrats Reid, Pelosi, and Obama to thank for gutting the Fourth Amendment and the rule of law with FISA [cough] reform.

Just saying. But there's always hope!