BERLIN - Under pressure to toughen their stance on migrants, German Chancellor Angela Merkel’s conservatives called on Thursday for an effective ban on the burqa, saying the full body covering worn by some Muslim women should not be worn in public. In its main resolution for a looming party congress in the city of Karlsruhe that is shaping up as a test of Merkel’s authority, the leadership of her Christian Democratic Union (CDU) resisted calls by some members for an “Obergrenze”, or cap on the number of refugees entering Germany.–Reuters