premise: Two Greenpeace protestors entered the CBI conference at the Business Design Centre in Islington, London and delayed a speech being made by the Prime Minister Tony Blair, in which he was expected to announce the consideration of further nuclear power stations to offset the increasing gas prices being experienced by industry in the UK. The protestors, wearing yellow safety jackets over business suits, climbed up into the ceiling rafters and held  banners saying "NUCLEAR: WRONG ANSWER", and dropped 'radioactive confetti' onto the delegates down below. Greenpeace threatened to make noise and throw missiles at the Prime Minister should he make his speech.
hypothesis: Greenpeace made a statement about yellow safety jackets.