Exposing the policy vaccuum

Back after a break, and the world's still going to shite. Jonathan Freedland made some interesting observations about the media's role in scrutinising Tory policy pledges - http://www.guardian.co.uk/commentisfree/2010/feb/02/david-cameron-conservatives-wobble - if you can call them that. Each day we see another range of conflicting and contradictiry statements from various Opposition ministers - why is no-one pointing this out to the country at large?