NEW DELHI, May 18 -- At this very moment, there must be over a billion of us all over the world, rigorously washing our hands for twenty full seconds! But, ask yourself, what you are washing away?

Shakespeare's Lady Macbeth, bearing a 'deathlike stare', wearing a flowing night-dress that reminded some reviewers of a shroud, walked in agony every night with 'feverishly writhing hands,' only still when they were held for a long moment to the candle. And what did the candle show? A huge blood stain to the audience. A murderous bloodstain that all the washing in the world could not take away!

Or Pontius Pilate, looking at an innocent Jesus, asked for a bowl of water, washed his hands in front of the crowd and shouted. "I am innocent of this m...