A MASSIVE road four football fields wide and running from Mexico to Canada through the heartland of the United States is being proposed amid controversy over security and the damage to the environment. The "nation's most modern roadway", proposed between Laredo in Texas and Duluth, Minnesota, along Interstate 35, would allow the US to bypass the west coast ports of Los Angeles and Long Beach to import goods from China and the Far East into the heart of middle America via Mexico, saving both cost and time. However, critics argue that the ten-lane road would lay a swathe of concrete...