Politics Weekly: Cameron cautious as Obama puts BP over a barrel

As Barack Obama piles the pressure on oil giant BP over the Deepwater spill, we look at the state of British-US relations under the coalition government. Jackie Ashley , Tom Happold and Michael White are on hand to discuss how the US president has handled the crisis. Also this week, we look back at an important moment in the history of Northern Ireland following David Cameron's apology to the families of those killed on Bloody Sunday. Plus: George Osborne gave his first Mansion House speech as chancellor this week. He confirmed a shake-up in financial regulation but his real test will come on Tuesday when he gives his first budget statement. Leave your thoughts on any of these subjects below.