Why not? Now the Seditionists won't be believed when they leak classified information. Knowing this technique exists will cause panic and confusion in and out of government. Media will be afraid of getting caught publicizing information designed to catch leakers.
What would be real sweet now is some trials for Sedition. This is terrible to say, but I hope McCain is involved.....10 years in prison would be a fitting end to his US Senate career (a gal can dream)
He can be a prisoner on both sides of the Vietnam war.