A major boycott may be forming against the full-body scanners of the Transportation Security Agency. See "Viral 'pornoscan' protest challenges TSA" and http://wewontfly.com/.
However, the TSA is only a product of decades of foreign policy failures. The United States has been meddling in other countries affairs at a level and a time span that we would not tolerate if other countries did the same to us. Our chickens have come home to roost.
Andrew Bacevich has been warning about our military/intelligence failures for some time, but despite the volume and popularity of his writing, he doesn't seem to be making much progress bringing about reform. See his "The Limits of Power, The End of American Exceptionalism" and "Washington Rules, America's Path to Permanent War", and many of his magazine articles.
Maybe a boycott of air travel could bring about a major change in foreign policy. It may seem like a win for the terrorists, but they keep winning in small ways all the time. The burden on passengers of airport security is a big win for terrorists; they have disrupted our economy and our sense of well-being. How long will we have to put up with terrorists before governments figure out how to permanently neutralize them without violence that creates more terrorists.