Since Snowden went public, companies such as Apple and Google - two of the world's most valuable companies - have incorporated much greater encryption into their products and have also been at pains to show that they will not go along with U.S. government demands to access their encrypted products.

Adding to your list of enemies is never a sound strategy, yet ISIS' ferocious campaign against the Shia, Kurds, Yazidis, Christians, and Muslims who don't precisely share its views has united every ethnic and religious group in Syria and Iraq against them.

ISIS' key social media-encrypted platform is Telegram, which is engineered by a Berlin-based tech company that can simply ignore the rulings of American federal judges as well as legislation passed by the U.S. Congress.

Peter Bergen Quotes