The Russian shelling of mothers and young children inside a maternity hospital in the Ukranian city of Mariupol is off-the-charts evil. History now has no choice but to regard the war crimes of Vladimir Putin in the same light as those of Slobodan Milosovic. Or should we compare him to Ralph Fiennes' Amon Goth in Schindler's List? War is cruelty, horror, depravity. The mind shudders.