
“When government officials came to Silicon Valley to demand easier ways for the world’s largest Internet companies to turn over user data as part of a secret surveillance program, the companies bristled. In the end, though, many cooperated at least a bit. The negotiations shed a light on how Internet companies, increasingly at the center of people’s personal lives, interact with the spy agencies that look to their vast trove of information — e-mails, videos, online chats, photos and search queries — for intelligence. They illustrate how intricately the government and tech companies work together, and the depth of their behind-the-scenes transactions.”