Be grateful you will never know explicit details on the depravity allegedly in the Mohler clan. And that law enforcement is carefully trained to handle it for society.</p><p>I hesitate to use terms by which readers will readily identify this column&rsquo;s impetus: a <em>father</em> and his four <em>sons </em>charged with, as a colleague penned, &ldquo;a string of incestuous outrages allegedly committed more than a decade ago against children in their own family.&rdquo;</p><p>If the allegations are true, the Mohlers are merely masquerading as human beings. The titles to denote their relationships &mdash; father to son &mdash; don&rsquo;t feel appropriate.</p><p>News of the charges prompted two common reactions: Is more of this sickness occurring, or are people just more aware? That query is often followed by anger at the Internet, so often the vehicle that assists such perversions.</p><p> The amount of child porn readily available has ballooned in recent years, much of it on the Internet. But that doesn&rsquo;t necessarily mean there are more deviants craving the stuff, or acting on it with a real child.</p><p> An agent assigned to an FBI unit that tracks child porn on the Internet once answered the &ldquo;is there more&rdquo; question with a fishing analogy: &ldquo;If you go fishing in a pond, you don&rsquo;t know how many fish are out there until you use some bait. If you go in with bait, they will bite.&rdquo;</p><p> And the FBI is adept at snaring this prey. Scary good when you think of the amounts they are tracking, from 113 to 2,443 child porn cases between 1996 and 2007. The FBI expects the number to continue rising.</p><p> Yet sane people can thank the Internet for making it possible to catch the perverts; sometimes it literally helps rescue a child.</p><p> Bridget Patton, spokeswoman for the Kansas City FBI office, worked for a while with the bureau&rsquo;s Innocent Images National Initiative, helping out because it was so overloaded. Part of what the unit does is identify which online porn is a real child, what had been Photo-shopped, what might be ongoing abuse.</p><p> Her comment about the experience: &ldquo;I thought I knew what child porn was. I had no idea.&rdquo; </p><p> That&rsquo;s why agents and other law enforcement who conduct the work receive regular psychological reviews. They need it to cope. The bureau needs to ensure agents&rsquo; mental health is not adversely affected.</p><p> One distinction researchers are studying is that many people who view child porn may not ever act out their fantasies on a real child. Given the amount of child porn available, that may feel like a shallow distinction. Those who sexually abuse children in their own family, even make a group activity of it, are another category as well. Which brings this back to the Mohlers.</p><p>Being reminded they&rsquo;re out there is unsettling.</p><p>But knowing that so many dedicated law officers are out to hook them is reassuring.