David Cameron's net migration target is dead, says thinktank

British Future says prime minister should admit to voters in EU referendum that plan to limit migrants’ access to benefits will not help reduce net migrationDavid Cameron must admit to voters in the EU referendum that his promise to cut net migration to tens of thousands is effectively “dead” as his plan to reduce migrants’ access to welfare benefits will have little impact if achieved, the thinktank British Future has said.The British Future pamphlet, drawing on new poll