[S]hould companies play a larger role in actively stamping out child pornography?...Internet service providers, cell phone companies, and tech firms can all play a part. For instance, My Mobile Watchdog has developed a service for parents to screen their children’s cell phone use…Microsoft has developed a Child Exploitation Tracking System...to help law enforcement agencies…But what about products designed to help…employers to spot child pornography[?]…Certainly new technologies now allow employers to identify child pornography more precisely than ever before. Netclean’s ‘Proactive’ software…uses a unique electronic fingerprinting technique to match any images or videos viewed or stored by employees against all of those seized by law enforcement agencies to date. But just because companies can do something about the problem, it doesn’t mean they will…There’s also the very real danger that any [such] system [could be] seen as invading the privacy of employees in some way…So what should firms do…?