We remain embroiled in a debate over the nature and extent of our own government's spying on us. The Foreign Intelligence Surveillance Act, which was enacted in 1978 as a response to the unlawful government spying of the Watergate era, was a lawful means for the government to engage in foreign surveillance on U.S. soil, but it has morphed into unchecked government spying on ordinary Americans. The journey that domestic spying has taken in 40 years has been one long steady march of massive increase in size and scope. The federal government now employs more than 60,000 people to spy...