May orders more work on Brexit customs plans after 'crazy' jibe

British Prime Minister Theresa May has told officials to do more work on future EU customs arrangements after her foreign minister attacked one of her Brexit proposals as "crazy".Boris Johnson's broadside against what some say is May's preferred option for ensuring Britain's new border with the European Union is as frictionless as possible underlines the deep divisions over what post-Brexit ties should look like.May's decision to leave the EU's customs union, which sets tariffs for goods importe