Trump to Attend WWI Centenary in Paris, as France Warns of Threats to Europe

U.S. President Donald Trump will travel to France this weekend along with dozens of other world leaders for ceremonies to mark the centenary of the armistice that brought an end to the fighting in World War I. As Henry Ridgwell reports, relations between America and U.S. allies are tense, and France has warned that the current geopolitical climate is reminiscent of the build-up to the world wars.