Philip Booth appeared in last night's second installment of BBC2's Masters of Money, which focused on the work of Friedrich Hayek.
The programme discussed Hayek's moral argument that when a government attempts to control the economy it ultimately enslaves its people. Philip commented that when we give more and more power to the state there is a gradual erosion of economic and then political freedom. That lack of political freedom will eventually lead to totalitarianism. Philip blogged about the episode here. 
Watch the programme here.  Philip's segment begins around 35.00.