How secure is the prime minister's position ?

We speak to Labour grandee Helena Kennedy and former Conservative cabinet minister David Davis ahead of the Prime Minister’s address to Parliament, in which he will explain what he knew about Lord Mandelson’s vetting failure for the role of US ambassador. Ahead of a potential second round of peace talks in Pakistan, we hear from a US official involved in negotiating the 2015 nuclear deal, and we speak to the man campaigning for public loos in every town, village and parish, after a report finds a drop in number over the last decade.