| Thursday 3 June 2010 at 10.30pm on BBC Two Presented by Kirsty Wark Tonight we have an exclusive insight into what might have driven Derrick Bird to shoot dead 12 people and injure 11 in yesterday's gun rampage. Peter Marshall who is in Cumbria at the scene of the devastating attacks has spoken to a close friend of the taxi driver. We will be bringing you that story and the latest on the investigation. In the studio we will be discussing whether Prime Minister David Cameron, who will visit the affected areas tomorrow, was right to rule out any quick review of Britain's stringent gun laws as a result of the killings with his assessment that: "You can't legislate to stop a switch flicking in someone's head and this kind of dreadful event taking place." The new International Development Secretary, Andrew Mitchell, has announced that an independent watchdog is to oversee Britain's foreign aid spending to check whether international aid actually works and provides value for money. Mr Mitchell said that the move was part of changes to ensure that the government can "squeeze every last ounce of value" out of its spending. Tonight we will be talking to Mr Mitchell, and discussing the coalition parties' radically differing views on the targeting of aid and why in a time of public spending cuts international aid has been ring fenced. For the second time in eight days a member of a Food Standards Agency committee running a public dialogue over GM foods has resigned. Tonight, Susan Watts looks into what has been going on and whether the public discourse over GM foods is now in doubt. Also, we have a film from Matt Frei on the Brazilian middle classes - and why they are so important. Do join Kirsty for all that at 10.30pm on BBC Two. | 
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