Think of how much crime would drop if we re-criminalized alcohol.
"by 1926, government chemists concocted ten poisonous "denaturing formulas" to be added to the alcohols. These contained ominous chemicals like gasoline, benzene, cadmium, nicotine, ether, formaldehyde, chloroform, and acetone. Prohibition advocates and officials believed that if they made the alcohol undrinkable, imbibers would be forced to abandon their immoral habits. The government defended this effort as "law enforcement." In truth, it was mass poisoning.
Source: Real Clear Science, When the Government Deliberately Poisoned Its Citizens