The European Union is preparing to activate a long dormant package of retaliatory tariffs on American products, with implementation penciled in for Feb. 7 if diplomacy fails. The move would escalate a fast moving confrontation with Washington over Greenland policy and trade leverage,

By Philip Blenkinsop BRUSSELS, Jan 21 (Reuters) - U.S. customs authorities will face a real challenge if President Donald Trump goes through with his threat to place tariffs on six EU countries - rather than the whole European Union - given the ease of movement of goods between EU members.

Due to extensive cross-border supply chains, it will be tough to establish the origins of the goods Read more at The Business Times.