Food security and housing an expanding nation should be priorities for Britain. Both are being thwarted by record land prices. In the past 10 years, farmland value has risen by almost 200 per cent - with feeding the population secondary to speculators buying up thousands of acres to avoid tax. If planning permission is given for new housing, prices may rise 50-fold - making home ownership a distant dream for many. Journalist Peter Hetherington argues that Britain needs much stronger action by the government. Chaired by Andy Fryers.