What Britain is demanding from the EU to avoid 'Brexit'

British Prime Minister David Cameron on Tuesday outlined his demands for EU reform, ahead of a referendum on Britain's membership in the 28-member bloc to be held by 2017. * Cameron wants legally-binding guarantees that the 19 EU members who use the euro currency will not club together and force decisions on Britain that affect its economy. * The British premier wants to cut what he sees as excessive EU regulation and bureaucracy to boost growth.