The right to travel enables the free exercise of the other rights we most cherish. We should not have to check our constitutional freedoms at the curb simply because we decide to leave the house. Sadly, freedom of movement has been one of the most disparaged rights throughout human history, and our country is no exception. If we are ever to be truly free, then we must possess an absolute, uninhibited right to travel throughout America and the world free from interference by government.
-- Judge Andrew Napolitano, Reason.com, 19 December 2011