Cameron talked about the EU in television interviews during a visit to Brazil, The Independent reported Friday. His comments suggested the Conservatives will make a pledge for an EU referendum a centerpiece of their 2015 election campaign.
"I don't think it is in Britain's interests to leave the EU but I do think what it is increasingly becoming the time for is a new settlement between Britain and Europe, and I think that new settlement will require fresh consent," he said. "In the next Parliament, I think there will be opportunities for a fresh settlement and for new consent to that settlement. There is a reason why. The euro is a currency with 17 different countries. I think, increasingly, one currency will mean one economic policy."
The government has started an "audit" of the powers the EU has in Britain, which is expected to be finished in about two years.