Current national statistics show a dramatic increase in the number of elementary and secondary school students bringing controlled substances (drugs) to school for personal use or distribution to others. In response, Congress enacted a statute requiring each state legislature to enact a state law that makes it a state crime for any person to possess, use, or distribute, within 1,000 feet of any elementary or secondary school, any controlled substance that has previously been transported in interstate commerce and that is not possessed, used, or distributed pursuant to a proper physician's prescription. This federal statute is 
unconstitutional, because Congress has no authority to require a state legislature to enact any specified legislation.  unconstitutional, because the possession, use, or distribution, in close proximity to a school, of a controlled substance that has previously been transported in interstate commerce does not have a sufficiently close nexus to such commerce to justify its regulation by Congress.  constitutional, because it contains a jurisdictional provision that will ensure, on a case-by-case basis, that any particular controlled substance subject to the terms of this statute will, in fact, affect interstate commerce.  constitutional, because Congress possesses broad authority under both the general welfare clause and the commerce clause to regulate any activities affecting education that also have, in inseverable aggregates, a substantial effect on interstate commerce.