As a two-mile-long convoy of military mutineers neared Moscow Saturday, a Russian presidential plane took off from the capital at 2:15 p.m. local time. It flew in the direction of President Putin’s native St. Petersburg until disappearing from radar at 3:06 p.m., according to Flight Radar. “Putin is working at the Kremlin,” spokesman Dmitry Peskov. A Russian air force attack on the mutineers was a fiasco. Soldiers from the Wagner mercenary group shot down six helicopters and one Ilyushin IL-18 airborne command center. The combined shootdowns killed 30 Russian airmen. Debris from one falling helicopter set ablaze the oil depot...