By Mohammed Ghobari and Lara Sukhtian SANAA/GENEVA, (Reuters) - Houthi fighters in central Yemen blew up the home of a senior politician on Wednesday while he was in Switzerland as a member of the exiled government's delegation to peace talks, residents said. In Geneva, the U.N.-sponsored talks between the warring factions went into a second day. Yemeni websites published picture of its collapsed ceiling on top of a pile of rubble.