Published: September 16, 2008 http://www.nytimes.com/2008/09/17/opinion/17wed3.html?_r=1&th&emc=th&oref=slogin It’s part of an educator’s job to spark debate, but a group of about 130 college presidents is on the wrong track with its suggestion that the nation reconsider the legal drinking age of 21. […]