Antiwar speakers on campus are lecturers, not students, this time

Dan Lowenstein passionately opposes the war in Iraq and recently helped stage an antiwar teach-in at UC San Francisco. "We must listen to our conscience and speak out," he told the hundreds of people who had gathered.

Lowenstein is no student organizer; he's a noted professor and vice chairman of the department of neurology at UCSF.

Four years into the war, student protests at campuses across the country have been rare, but a handful of academics have begun speaking out and conducting studies within their own disciplines to make the case against the conflict.