GLASGOW, SCOTLAND - OCTOBER 07: Lib Dem Energy Secretary Ed Davey takes part in a television interview during the fourth day of the Liberal Democrat Autumn conference at the SECC on October 6, 2014 in Glasgow, Scotland. Lib Dem Energy Secretary Ed Davey will later address delgates where he is expected to announce a U-turn on the party's stance on airport expansion. (Photo by Christopher Furlong/Getty Images)
