The Columbine Massacre - Ten Years Later

It's been a little more than ten years since Eric Harris and Dylan Klebold went to school in Colorado and began a massacre that would claim the lives of no less than thirteen people before the two dranged students turned their guns on themselves. What have we learned since then? Dave Cullen stops by to discuss his book, "Columbine," one of the most researched books on thif fascinating topic. Be sure to visit his website at http://www.davecullen.com.