Leila Deen a climate change activist from the Plane Stupid group, has thrown a cup of green “slime” over Business Secretary Lord Mandelson as he arrived at a summit to launch the Government’s low carbon industrial strategy. Mandelson, who was caught in the face getting out of his ministerial car, dismissed the incident as an “adolescent prank”. Deen walked away unchallenged after the sliming telling reporters afterwards that she was protesting against the ministers support for the third runway at Heathrow saying “The only thing green about Peter Mandelkson is the slime coursing through his veins. That he is trying to make political capital out of climate change … is an insult to my generation. He is unelected and only represents business interests”.