With such a porous southern border the United States is at risk for far more than an endless stream of illegal immigration. We have made many enemies around the world who won't hesitate to exploit any weakness and there is a glaring weakness to our south that, after something happens, will be extremely obvious in the twenty-twenty vision of hindsight. The recent attacks by Hamas in Israel have shown that a determined enemy can cause significant death and destruction with improvised equipment and tactics. The essential factors are unpredictability and surprise. It is impossible to defend our entire country from an enemy once we have been infiltrated at scale. Israel couldn't do it and it is a country the size New Jersey. So what are the possible results of being infiltrated by our enemies and who may try something like that? How large could such an attack become and how much could it disrupt our daily lives and could it become a threat to our way of life?