Overview:Tonight our Diplomatic editor Mark Urban will be asking where the killing of al-Qaeda leader Osama Bin Laden by US forces leaves the war on terror. We'll speak live to George W Bush's Homeland Security Secretary Michael Chertoff.
We have the first in a series of films hearing testimony from people who were caught up in the 7/7 bombings in London in 2005, and we'll debate if there is now an increased risk of further terrorist attacks here in the UK following Bin Laden's death.
Paul Mason is in Cairo and has been considering how the Arab Spring fits into the story. Where is the Arab world facing politically now and might a less brutal face of political Islam emerge? Read more on Paul's blog.
Matt Frei is in Washington where he asks people how the extraordinary events of yesterday have changed the public perception of President Barack Obama and will it propel him to a second term?
And Iain Watson reports on the confrontation between the energy secretary and the prime minister at a cabinet meeting over the No campaign's claims in the alternative vote referendum. George Osborne reportedly told Chris Huhne that the Cabinet was no place for a "Jeremy Paxman interview".
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