Health Bill: MPs calls for risk register publication
22 February 2012 Last updated at 16:37 GMT
Labour is staging a debate in the House of Commons, calling on ministers to publish a "risk register".
The document is a detailed analysis of what could go wrong with the proposed changes in the health service in England.
Liberal Democrat MP Andrew George said the Bill was "less bad" but he was yet to be persuaded the Bill should go through, although some Lib Dem activists have promised NHS bill trouble
During PMQs, the prime minister taunted Labour over a lack of questions over the risk register as he produced a Labour briefing document.