At odds over Brexit, UK nations discuss how to cooperate on terms

By Kylie MacLellan LONDON (Reuters) - The leaders of Scotland, Northern Ireland and Wales met British Prime Minister Theresa May on Monday to discuss what part the three nations will play in the Brexit process, a thorny issue that risks triggering a constitutional crisis. May proposes setting up a new committee to give the three devolved governments, which have varying degrees of autonomy from London, a formal avenue to express views on how Britain's future relationship with the European Union s