HARDtalk

After almost six months in Downing Street, the UK Prime Minister David Cameron still puzzles many activists in his own party - what kind of conservative is he? A true heir of Margaret Thatcher and her market driven radicalism, or a throwback to Benjamin Disraeli's one nation Tory paternalism? Daniel Hannan is an influential voice on the right wing of the Conservative party. Stephen Sackur asks him what he makes of David Cameron's claim to be a progressive Conservative.