Trump's Panama Canal threat, German Christmas market suspect, Nissan-Honda and holiday booze

President-elect Donald Trump has threatened to reassert U.S. control over the Panama Canal, accusing Panama of charging steep prices to use the passage. A man suspected of ploughing a car through crowds at a German Christmas market and killing five people faces multiple charges of murder and attempted murder. Nissan and Honda eye a possible merger. And inflation has left some drinkers looking for ways to rein in their holiday booze spending. Sign up for the Reuters Econ World newsletter here . Listen to the Reuters Econ World podcast here . Find the Recommended Read here . Visit the Thomson Reuters Privacy Statement for information on our privacy and data protection practices. You may also visit megaphone.fm/adchoices to opt out of targeted advertising. Learn more about your ad choices. Visit megaphone.fm/adchoices