(Reuters) - Chancellor Angela Merkel urged Germans debating Muslim integration to stand up more for Christian values, saying Monday the country suffered not from "too much Islam" but "too little Christianity." Addressing her Christian Democratic Union (CDU) party, she said she took the current public debate in Germany on Islam and immigration very seriously. As part of this debate, she said last month that multiculturalism there had utterly failed. Some of her conservative allies have gone further, calling for an end to immigration from "foreign cultures" -- a reference to Muslim countries like Turkey -- and more pressure on immigrants...