Because of the sheer magnitude of the existing problem, the efforts of our law enforcement officials often appear to be exercises in futility. They are outmatched, out-financed and outgunned by those who have gotten very wealthy from supplying illicit drugs. This war, if it is to be won, will not be won at the borders. A working knowledge of God's Word enables and empowers us to resist the devilish temptations that exist in this world. Furthermore, it teaches us how.
Demand always drives supply.
Reduce the one, the other is also decreased. Drugs simply can't hold a candle to the euphoria given by the presence of God.