"Those were the days of a counter-culture movement against authority," Epps says. "We don't have that today."

"I think that the number of activists seems to be smaller, but they are equally active in passionate campaigns that involve big ethical issues," he continues.

Loeb House's Quincy Street address was also a destination for student activists 30 years ago, who rallied, picketed in front of the building and organized sit-ins-a move PSLM has yet to make.

"Ordinarily, Harvard protests have not targeted individuals, but rather the decision-making body," Epps says.

While the Loeb House actions of 30 years ago did galvanize the student body, Epps says the picketing, rallies and sit-ins failed to directly result in change.

Instead, students worked within the existing power structure of the University to win concessions.

"Eventually, the students found faculty allies who raised the issue on faculty floor," Epps says. And Epps says it was this move that finally led to ROTC being withdrawn from campus.

This is the way student campaigns work best, Epps says, and recently, PSLM members have stepped up their efforts to enlist faculty members to their cause.