Former US president Jimmy Carter has admitted he uses snail mail to evade monitoring by the National Security Agency and that he feels such surveillance methods have been abused.

“When I want to communicate with a foreign leader privately, I type or write a letter myself, put it in the post office, and mail it,” Carter said with a laugh, as he was questioned on the matter on NBC’s “Meet the Press” program.

“I have felt that my own communications are probably monitored,” he said on the Sunday show.