The U.S Canadian Border is the longest non-defened border in the world. Billions, if not Trillions dollars of trade cross it each year. The border between our two countires is not fenced, or in some areas not even guarded. On British Colombia's lower mainland the only thing seperating our two countires, is a ditch. The border works on the honor system. People crossing are expected to honestly declare everything, cash, merchandize, alcohol, tabocco products and firearms. I cross frequently each year, and I'm asked about cash that I maybe carrying. I declare all and pay my the duty and taxes that are over my personal limit. The majority of people do. If they do not they are not supporting the countires they live in, in over words stealing from all of us. Only a criminal would not declare, and the border guards treat them as such.