U.S. Secretary of State John Kerry said on Monday it was "inappropriate" for Donald Trump to brand German Chancellor Angela Merkel's refugee policy "a catastrophic mistake". "I thought frankly it was inappropriate for a president-elect of the United States to be stepping into the politics of other countries in a quite direct manner," Kerry told CNN's Christiane Amanpour during a one-day visit to London in the last week of the Obama administration. "He will have to speak to that. As of Friday, he is responsible for that relationship." Trump, who will be sworn in as president on Friday, had said...