"College presidents from about 100 of the nation's best-known universities, including Duke, Dartmouth and Ohio State, are calling on lawmakers to consider lowering the drinking age from 21 to 18, saying current laws encourage dangerous binge drinking on campus.

The movement called the Amethyst Initiative began quietly recruiting presidents more than a year ago to provoke national debate about the drinking age."

18: partake in anal gangbang pornography, get blown up by an IED in the Middle East, vote Republican.

21: buy beer.