I just stumbled on this. At first I thought it was people harassing USBP officers but after thinking about it they are exercising their 4th and 5th amendment rights and on it's face checkpoints like this are not constitutional. I would feel the same as these guys if I was forced to stop and answer questions for just traveling on the highway.
TOP U.S. CHECKPOINT REFUSALS OF 2012! - YouTube[/url]