By Deepa Babington ATHENS (Reuters) - Hollywood actor George Clooney's new wife, human rights lawyer Amal Alamuddin Clooney, made an impassioned plea on Wednesday for the return of the Parthenon Marbles to Athens, in what Greeks hope may inject new energy into their national campaign. The Lebanese-born Briton, part of a legal team advising the Greek government on its bid to secure the return of ...