Just about everybody in politics has something to hide. The higher they rise in the system, the more skeletons they have stuffed in their closets. An… - L. Neil Smith

Importantly, there is nothing in the Constitution — by which, under Article 6, Section 2, officials at every level of government are obligated to abide — that authorizes the banning of any substance or enforcing that ban with the threat of injury, incarceration, or death. The lawful powers of the federal government are enumerated in Article 1, Section 8, and they do not include forbidding drugs or any other substance. Politicians early in the 20th century understood this, and passed a Constitutional amendment allowing them to outlaw alcohol. No such amendment has ever been passed, or even proposed, with regard to drugs.

Repealing drug laws would remove the risks involved with producing and distributing drugs, bringing 'street prices' crashing down (it's estimated that a 'spoon' of heroin would cost about a quarter in the free market), thereby eradicating any incentive that criminals might have to compete with legitimate businesses, and greatly reducing — if not eliminating altogether — any economic reason to 'push' drugs on children.

The Bill of Rights isn't about us, it's about them. It isn't a list of things we're permitted to do, it's a list of things they aren't allowed even to consider.