Lord Lawson - Former UK Chancellor of the Exchequer

That Britain's Conservative Party is deeply sceptical about the European Union isn't news. What is novel is the readiness of some of the party's grandest grandees to call for a British exit. Stephen Sackur talks to Lord Lawson, Margaret Thatcher's former Chancellor, who recently labelled the EU a bureaucratic monstrosity, past its sell-by-date. His intervention embarrassed prime minister David Cameron and deepened the impression of a Tory party dangerously divided. So, why did he do it?