Have you seen our coastline lately? There is nothing easier in the world than dropping a rubber dinghy off a freighter and motoring into shore.
That is possible.. Coyotes using freighters. Now there's an idea. But seriously, Its allot easier to spot a freighter (which I guess could carry hundreds of illegals) than many people spread out along the border hiding under brush. Just think, they sure as heck couldn't scatter and run in all directions now, could they? Gotta hit the hay.. Been a long night. You have a good day.