Reino Unido enquanto joga no "opting-out", aposta no "trade-in"

http://24.sapo.pt/article/www-theguardian-com_2016_01_17_1085390195_cameron-hopes-for-eu-concessions-in--second-tier-membership--for-uk#_swa_cname=pushdown&_swa_csource=sapo.pt&_swa_cmedium=web