"Across the Potomac River at Quarters 6, inside his second-floor, top secret Sensitive Compartmented Information facility, surrounded by multiple secure video screens connected to the White House and the world, Chairman Milley was still trying to sort out the meaning of the January 6 riot... The conventional wisdom, which had settled into Washington, was that there had been warnings. But Milley knew the internet chatter lacked coherence and did not provide the specific, credible intelligence that could avert a catastrophe. It had been a grave U.S. intelligence failure, comparable to the missed warnings prior to the September 11, 2001 terrorist attacks and to Pearl Harbor, and exposed glaring gaps and weaknesses in the American system. What did Milley and others miss? What did they not understand? Milley, ever the historian, thought of the little remembered 1905 revolution in Russia. The uprising had failed, but it had set the stage for the successful 1917 revolution that led to the creation of the Soviet Union. Vladimir Lenin, the leader of the 1917 revolution, had later called the 1905 revolution "The Great Dress Rehearsal." Had January 6 been a dress rehearsal?"