Germany's Social Democrats overtake Merkel's conservatives in poll

BERLIN (Reuters) - Germany's Social Democrats have overtaken Chancellor Angela Merkel's conservatives in an opinion poll by Infratest dimap for the first time since October 2006, with seven months to go before a federal election. The survey for German broadcaster ARD put the SPD, which has gained strength since nominating former European Parliament President Martin Schulz as its candidate, on 32 percent while Merkel's conservative bloc was on 31 percent. The SPD gained 4 percentage points compar