Business leaders urge Cameron not to 'risk' EU membership
Ten of the UK's leading business figures have warned David Cameron not to put membership of the European Union "at risk" in negotiations over the country's relationship with Brussels.
The prime minister has said the UK is "perfectly entitled" to demand change. But leaders including Virgin's Sir Richard Branson and BT's Sir Michael Rake say calls for "wholesale" revision could mean "damaging uncertainty".
Chairman of Business for New Europe Roland Rudd told BBC News that he wanted the UK to remain in the "mainstream of Europe".