Merkel, SPD welcome further talks on German government --- (Reuters) - Angela Merkel's conservatives and the opposition Social Democrats (SPD) agreed to meet again in 10 days to explore forming a "grand coalition" government after an initial three-hour meeting on Friday was called constructive by both sides. --- The German chancellor's Christian Democrats (CDU/CSU) emerged as the dominant party from the September 22 election but need a coalition partner and Friday's meeting marked the start of complex horse-trading that could last two months or more.