Confused propaganda on Putin's TV: Secret services are said to have implanted chips in the brains of Moscow attackers. They believe a “false flag operation” is possible, since Putin had already used such an operation in the Chechen war at the end of the 1990s.
The United States also rejected claims from the Kremlin that Ukrainian backers were involved in the attack on the concert hall near Moscow. Russia is carrying out “nonsensical propaganda,” said US National Security Council spokesman John Kirby.