Islamic extremists planned to carry out a series of spectacular terror attacks against British nightclubs, the Old Bailey has heard. Hundreds of people at one club in London escaped death only because two car bombs packed with improvised explosives and gas cylinders failed to go off. One of the devices was left directly outside the Tiger Tiger club in the capital’s Haymarket area and the second was positioned further down the street. The bombers tried to set them off with mobile phones but the fume-filled cars did not ignite and the club was successfully evacuated. Details of the attempted bombing...