our correspondent rajini vaidyanathan reports. heading into a new and uncertain era. taliban militia now in control of kabul airport — and afghanistan. just weeks ago, this tarmac was packed with afghans desperate to flee. today, taliban fighters lined the runway, their spokesman congratulating them on what he described as a moment of joy and celebration. translation: the islamic emirate | of afghanistan wants to have good | relations with the whole world on behalf of the nation. we want to have strong diplomatic relations with all — including the united states. last night, the last us soldier to leave — major general chris donahue — boarded a cargo plane out of afghanistan. the end of america's longest war. but many who wanted to leave too have been left behind. crowds at the airport prevented several families eligible