A new cost efficient way to enforce immigration laws. it cost much less then the old method and works just as well. Original Article Just tell immigrants to 'keep out' Mar. 24, 2006 12:00 AM Why don't we post signs along the border facing Mexico that say, "Keep Out. No Trespassing. This means you!" It would be just as effective as a 700-mile-long fence. And a lot cheaper. Richard L. Thomas Phoenix, Arizona