Timothy Edgar for the Progressive Policy Institute: In Edward Snowden’s first interview from Hong Kong, he warned against “turnkey tyranny.” One day, he said, “a new leader will be elected” and “they’ll find the switch.”

With Trump’s election, it is important that this warning not be proved prophetic. While the United States has a robust system of intelligence oversight — the strongest in the world — it still largely depends on the good faith of executive branch officials.