Today - 21/01/2011

Morning news and current affairs with James Naughtie and Justin Webb, including: 07:50 Former ambassadors Sir Christopher Meyer and Sir Jeremy Greenstock debate Tony Blair's second appearance at the Iraq Inquiry. 08:10 What does the appointment of Ed Balls as shadow chancellor mean for Labour's economic policy. 08:20 Social Network and West Wing screenwriter Aaron Sorkin gives his thoughts on the US media.