The Leakers Who Exposed Gen. Flynn’s Lie Committed Serious — and Wholly Justified — Felonies

President Trump’s national security adviser, Gen. Michael Flynn, was forced to resign on Monday night as a result of getting caught lying about whether he discussed sanctions in a December telephone call with a Russian diplomat. The only reason the public learned about Flynn’s lie is because someone inside the U.S. government violated the criminal law by leaking the contents of Flynn’s intercepted communications.

In the spectrum of crimes involving the leaking of classified information, publi...