After all that, I thought I knew the worst about drunk driving. I was wrong. Three years ago my brother, Ryan, a Middlebury College senior, drove 70-100 miles an hour on a rainy rural road into a tree, ending his life. His blood-alcohol level was nearly three times the legal limit. Witnesses later recounted that he was swerving and speeding on a nearby road.

It was one of the worst accidents that officers at the crash site had ever seen. The two policemen assigned to wipe Ryan’s blood and tissue off the car’s broken windshield found it impossible even to talk to us about the details of what they found. According to the police report, before officers could transport Ryan to the funeral home, they had to remove a small branch that pierced his permanently flattened lips.

Ryan was last seen drinking on campus at a fraternity house that was serving vodka punch. He left the party intending to drive to his off-campus apartment three miles away to pick up a toga for yet another event. He never made it home. After his death, we found out that Ryan had developed a drinking problem while away at college. But even though he drank to excess at nearly every social function, usually three to four times a week, many of his friends never realized he was on his way to becoming an alcoholic.

It turns out that one of the staff members in the student-activities office where Ryan often came to register his fraternity’s parties had suspected that he had a drinking problem. And Ryan isn’t the only Middlebury student to be involved in a dangerous alcohol-related incident: in the year before his death one of Ryan’s fellow students nearly died in a binge-drinking incident, saved only because the hospital pumped her stomach as she lay unconscious. Her blood-alcohol level was .425 percent.

What should we do about the Ryans of the world? I know that my brother was ultimately responsible for his own death, but in my view, college administrators can work harder to keep kids like Ryan from getting behind the wheel. But many schools have been reluctant to address the problem. Why? Perhaps because taking responsibility for drinking and driving will make trustees and college presidents legally liable for college students’ drunk-driving behavior. If administrators accepted this responsibility, they might ask themselves the following questions: Should we expel students who receive a D.U.I.? Has the president of our university met with the mayor to create a unified policy toward drunk driving within our town? Have we contacted organizations like M.A.D.D. and S.A.D.D. to help us implement alcohol- and driving-education programs?

On campuses like Middlebury’s, where many students own cars, administrators can use more aggressive methods to combat drinking and driving. Yet after Ryan’s death his university ignored my family’s request to fund a Middlebury town officer to patrol the main entry into campus for out-of-control drivers on weekend evenings. This, despite the fact that the Middlebury College director of health services informed me and my family that approximately 15 percent of the school’s freshmen were so intoxicated at some point during the last year that a classmate had to bring them to the infirmary.

Why does the problem of drunk driving persist? It’s not easy to solve. College students are young and irresponsible, and drinking is part of their culture. Administrators have not wanted to abolish social houses and fraternities for fear that ending such beloved college traditions would lower alumni donations.

To college presidents, trustees and all college officials, I ask that you go home tonight and consider your love for your own son or daughter, your own brother or sister. Imagine the knock on your door at 3 a.m. when a uniformed police officer announces that your loved one has died. Then go to a mirror and look deep into your own eyes. Ask yourself the question: have I done enough to help solve this problem?

The choice is simple. You can choose to be a leader and an agent of change on a controversial issue. Or you can continue the annual practice of authoring one of your student’s eulogies. My family, in its grief, begs you to do the former.