The Making of a Policy Gadfly

By ANDREA L. FOSTER

Seeing crucial computer-science work threatened, a Princeton professor takes on Congress

Edward W. Felten is a distinguished Princeton University computer scientist whose specialty is computer security and cryptography. So how come a Web log he created calls for the regulation of dog collars?

Mr. Felten's message -- "Fight piracy! Regulate dog collars!" -- is part of what he calls Fritz's Hit List, an irreverent inventory of devices that would be affected by a bill