Investigators say child-pornography victims are getting younger, and the abuse is becoming more violent. In Arizona, we know of 15,000 IP addresses (the Internet Protocol labels assigned to each computer device) belonging to people who own computers, cellphones and other electronic devices trading and downloading child porn. A significant number of these videos and images consist of infants and young children being raped, tortured and sexually abused. Some of even include "how to" instructions on how a grown man can rape a 3-year-old and groom him or her for years of abuse. Efforts have increased as the Phoenix area prepares to host the Super Bowl, which for years has been dogged by claims that it brings along with it a rise in underage girls for sale in any host city.