Remember why NATO spent 78-days bombing Yugoslavia in the spring of 1999?There was the ethnic cleansing. The atrocities. The refugees chased out of Kosovo by the Serb army. The mass graves. The heaps of bodies tossed into vats of sulphuric acid at the Trepca mines.NATO spokesman Jamie Shea said there were 100,000 Kosovo Albanian Muslims unaccounted for.Problem is, none of it happened.NATO's original estimate of 100,000 ethnic Albanians slaughtered, later revised downward to 10,000, turns out to be considera