Jessica Rettig, a 20-year-old journalism student wearing a bright blue cotton sundress and flip-flops, is sitting in her professor's office at Georgetown University, dialing a number in Pakistan. She's hoping to interview a man with possible ties to terrorists.
The man answers the phone and says he'd be glad to talk, but asks: Could they do it by e-mail instead? Rettig takes down his e-mail address, hangs up the phone, and sends him a quick note. Almost immediately it bounces back: address unknown. The e-mail is a fake.
It's a hard lesson -- one of many -- in what might be the toughest class in town.