Dhiren Barot has already pleaded guilty to conspiracy to murder and he is to be sentenced on November 7th. A court has heard just what the plan was - a dirty bomb in the heart of London, a tube train blown up under the River Thames and synchronised attacks in Britain and the US. It was an astonishing blueprint for a mass killing - bigger and bolder than even September 11th. Prosecutors also revealed video footage they said showed the financial targets in America Barot was planning to bomb.