The level of tragedy here is impossible to fathom:<p>Anton Dovhopol, the head doctor at the Bucha hospital, suggested to Russian soldiers that they dig mass graves to prevent the dead bodies from spreading disease.<p>He also asked them to give civilians more time to get home before curfew. Since the Russians didn’t change their clocks to Ukrainian time when they invaded, civilians and troops were running on two different clocks.<p>“It was the difference between curfew times, that was when most people died,” he said.