Farmers are planning a blockade at the Canadian border this weekend. Some of the dozens of border crossings from Minnesota to Seattle will be closed. Loggers in Maine say they will shut down a border crossing in solidarity with Midwestern farmers. Protest organizers say Canadian ag products are flooding the U-S market, driving down prices. They want more restrictions on Canadian trade. But some trade experts say farmers are fighting the wrong battle. Minnesota Public Radios Dan Gunderson reports... For Curt Trulson the issue is fairly simple. Canadian wheat is pouring into the U-S, and wheat prices are at rock bottom.