There is a serious lack of both manpower and resources at the southern border. With the right adjustments to funding, it would be possible to 100% inspect every vehicle and person crossing the border with either x-ray, K9 units, or both.
Any amount of illegal immigration, firearms, or illicit materials is too much. A line has to be drawn in the sand, and if it takes reallocating funds from “conflicts” that we aren’t directly involved in to bankroll it, then so be it.