1050: Gordon Brown is visiting the factory of Airbus UK in Filton in Bristol and talking to some of the workers there.1050Broadcaster Michael Cockerell, who made a documentary about how to win a TV debate, believes the pressure is on Nick Clegg for tonight's televised head-to-head. He says David Cameron appeared "like the rabbit caught in headlights" last week, with a look of "oh, crikey" as the broadcast went on. More