Could there be a nerd riot at Comic-Con? Experts weigh in.

San Diego Comic Con is filled with dense crowds of people who are very, very passionate about their favorite franchises. Could those elements ignite into a serious riot? According to scientists who study crowds, it's very possible. » 7/02/10 3:00pm 7/02/10 3:00pm

Factors against an SDCC riot: [Note: I've spent a great deal of time in…