While I'm not impressed with the unamed sources used in this story, I do agree that the border IS dangerously wide open.
Anyone who doesn't believe that it is really ought to come see for themselves, the last time I went through the border check a couple weeks ago when they were supposedly on some kind of alert, they weren't checking anyone at all. Very few cars get checked at the original border still because we don't want to inconvenience shoppers or people coming to use our hospitals or schools.