Teresa Heinz Kerry 'doing better,' says a teary John Kerry (video)

Secretary of State John Kerry got a little emotional Wednesday while updating an audience on the condition of his sick wife. "Teresa is doing better under evaluation and we hope improving," he said as he opened an annual summit between the U.S. and China in Washington. Kerry's voice faltered a bit and he paused a couple of times to find the words: "I want to thank everyone for the remarkable outpouring of good wishes. It's been really, uh, very special. We are very, very humbled by the expressio...