A new battle appears to be looming between Canada and the United States. This time it's about water. Many years ago, the two countries agreed to share the water from two rivers that flow from Montana into Alberta. But now the Americans want to change the deal. They want more water, and we don't want to give it to them. In this News in Review story the CBC's Margo McDiarmid talks to farmers on both sides of the border and discovers the source of the issue.