SLAIN AGENT: I DON'T BELIEVE U.S. VERSION-COMMUNIST LEADER (AGI) - Rome, Italy, March 5 - "A day that was supposed to be happy changed into pain and anger. I don't believe a word of the American version. It's clear that they are trying to hide what really happened. The Americans deliberately shot at the Italians. It's huge," said the secretary of the Italian Communist Party, Oliviero Diliberto, commenting on what took place after the liberation of the journalist Giuliana Sgrena. Diliberto said that "the entire centre left (in Italy) should ask the withdrawal of our troops in Parliament. Enough...