Cameron sets immigration red line ahead of EU summit

By Andrew Osborn and Kylie MacLellan LONDON (Reuters) - Prime Minister David Cameron said on Thursday restricting European Union migrant access to Britain's welfare system was a red line in his negotiations with the bloc, ahead of an EU summit he wants to use to launch informal talks on the issue. Cameron, re-elected on May 7, has pledged to reshape Britain's ties with the European Union before holding an in-out EU membership referendum by the end of 2017. Official data released hours