Zeynep Tufekci, assistant professor of sociology, was quoted in a Feb. 24 Baltimore Sun story on recent controversies about the popular social networking site Facebook's privacy policies.

"It used to be that 'private' was intimate and invisible. But what we have here, on Facebook in particular, is intimate and visible," Tufekci says. "It's a public/private mixture that we've never had, and it's turned all sorts of things upside down."