Former President Jimmy Carter meanwhile has revealed he limits his own email use out of fear he’s spied on by U.S. intelligence. In an interview with NBC News, Carter says he avoids emails when corresponding with foreign leaders — instead using old-fashioned “snail mail.”

Jimmy Carter: “That has been extremely liberalized and, I think, abused by our own intelligence agencies. As a matter of fact, you know, I have felt that my own communications are probably monitored. And when I want to communicate with a foreign leader privately, I type or write the letter myself, put it in the post office and mail it … because I believe if I send an email, it will be monitored.”

In the same interview, Carter said President Obama has never called him to ask for advice. Carter cited as the reason his stance on the Israel-Palestine conflict, where he has called for “equal treatment” of Israelis and Palestinians. That, he suggested, has put him at odds with official U.S. policy.