An image taken from video shows an explosion near the dome of the Kremlin Senate during an alleged Ukrainian drone attack in Moscow, May 3. (Ostorozhno Novosti/Handout via Reuters) The Russian government is accusing the United States of masterminding an assassination attempt on President Vladimir Putin in a drone attack at his residence in the Kremlin. Two drones were brought down by Russian air defenses in the early hours of Wednesday morning, the Kremlin said in a statement. Putin was not in residence at the time of the alleged attack. What do we know so far? A view of the...