" authorize wiretaps to protect the United States from foreign spies and subversives. But the targets of these taps were not KGB agents. They were thirteen American government officials and four newspaper reporters. Over the next two years, though the leaks went on, the taps never revealed a shred of incriminating evidence against anyone. But they were the first step down the road to Watergate. On "

― Tim Weiner , Enemies: A History of the FBI