Details are classified of course…
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The Secret Service is conducting middle-of-the-night drone flights near the White House in secret tests to devise a defense against the unmanned aircraft, The Associated Press has learned.

The government-controlled drones will be flown between 1 a.m. and 4 a.m. during the next several weeks over parts of Washington —airspace that’s usually off limits as a no-fly zone, according to a U.S. official briefed on the plans.