We contacted cybersecurity expert Bruce Schneier, who is a fellow at Harvard’s Berkman Center for Internet and Society and one of the signatories on today’s letter, to learn more about what prompted the message to the president. Schneier said that repeated anti-encryption comments from top officials such as Comey in the U.S. and Prime Minister David Cameron in the U.K. indicated that “the cryptowars are back. This is Cryptowar 2.”

Source: Tech Giants Urge Obama To End Phone Spying – Network Security on Top Tech News