Cameron plays hard to get as EU pushes reform offer

By Alastair Macdonald BRUSSELS (Reuters) - David Cameron told Brussels on Friday that a proposed "emergency brake" to curb European immigration to Britain was "not good enough" but he saw progress on a deal to persuade British voters to back continued EU membership. After lunch with European Commission President Jean-Claude Juncker, whose staff described the meeting as "difficult but constructive", Cameron was at pains to play down talk that a draft package EU officials say could be ready this w