Column: The humanitarian crisis at the U.S.-Mexico border

People from all over the world come to the United States for a chance to live a better life. Some are coming here to work, some are coming to reunite with their families, and some are escaping corrupt governments. We should welcome them with a strong legal immigration system.

What we should not allow are the criminals that take advantage of the loopholes in our immigration laws. Drug dealers and sex traffickers exploit our lack of border enforcement and outdated technologies, and children are “rented” and bought as “free entrance” cards. As Americans, and as humans, we should not tolerate thes...