it's possible to kill 100 or 400 kids in four schools tomorrow morning. >> it's important for me to know that she knows the realities of what it is i do and the threats that are out there. >> it helps me to do my job better and to support him in what he does. >> for grossman, he paid about $4,000 for lectures and sells his books. some of the officers at levin worth are not convinced. >> he has an interest in selling books. >> he's got two conflicting interests. he does want to better us, but he has a product to sell. pathat are product is something the military and police departments across america are willing to buy. in june 2011 in a conference room in one of the big casinos, these men didn't come to gamble. they are police officers who signed up for a two-day seminar