ELIZABETH PIPER, KATE HOLTON and ALISTAIR SMOUT BRITISH Prime Minister Liz Truss fired her finance minister Kwasi Kwarteng and scrapped parts of their unpopular economic package in a desperate bid for political survival less than 40 days into her premiership. With financial markets in turmoil, a chastened Truss said she accepted her government's plans for unfunded tax cuts had gone "further and faster" than investors were expecting. "I have acted decisively today because my priority is ensuring our country's economic stability," she told a brief news conference in Downing Street. "I want to be honest, this is difficult. But we…