How a 30-year-old lawyer exposed NSA mass surveillance of Americans – in 1975

US intelligence agencies have sprung so many leaks over the last few years—black sites, rendition, drone strikes, secret fiber taps, dragnet phone record surveillance, Internet metadata collection, PRISM, etc, etc—that it can be difficult to remember just how truly difficult operations like the NSA have been to penetrate historically. Critics today charge that the US surveillance state has become a self-perpetuating, insular leviathan that essentially makes its own rules under minimal oversight. Back in 1975, however, the situation was likely even worse.