An Italian far-left group has claimed responsibility for a letter bomb sent to Germany's top banker, police say, adding that further explosives may still be in the post. State police said it was possible that the "terrorist left-wing anarchist" group had sent other bombs in addition to one intercepted on Wednesday addressed to Deutsche Bank CEO Josef Ackermann at the bank's Frankfurt headquarters. "In the intensive search for evidence, authorities from the Hesse state crime office found a hidden, rolled up letter written in Italian," police said in a statement. "In it, the 'FAI - Federazione Anarchica Informale' (Informal Anarchist...