Athens (Reuters) - "Gentlemen, we are finished," said the patrician President, calling an abrupt halt to two hours of baiting and cat-calling between furious Greek politicians. "I'm starting to get upset myself now. We are finished." The final collapse of talks to forge a new Greek government triggered repeat elections and fears of a chaotic exit from the euro zone. But it is the manner of that collapse, the acrimony and rancor cited by Karolos Papoulias, that bodes ill for efforts after June polls to pull Greece back from the brink. ...