Tensions between US and Canadian farmers are risning rise again, and may erupt this weekend. Plans are being laid to repeat -- and expand -- September's border blockade of Canadian agricultural goods to market in the US. But Canada is not backing down saying such protests will do nothing to resolve longstanding conflicts between the US and Canada. Yesterday in Washington, the Canadian minister of Agriculture told farm representatives the border delays, and indeed much of US farmers' antagonism toward Canada are based on misperceptions. From Washington, Emily Harris reports. TRXX 1: Canadian Agriculture Minister Lyle Vanklief says US farmer complaints of Canadian trade obstacles are BASED ON RUMOUR not facts -- and are being MADE loudly now due to worldwide low prices for