Updated

An Indiana task force is building a national reputation for aggressive pursuit of child pornographers worldwide.

The Internet Crimes Against Children group includes federal, state and local law enforcement officials who track down people who record or collect videos depicting children being sexually abused. They then follow the computer trail wherever it leads, resulting in arrests in the United Kingdom, Australia and elsewhere.

Assistant U.S. Attorney Steve DeBrota is credited with leading the charge. He began pursuing child pornographers in 1991 and is now is one of a handful of prosecutors advising the U.S. attorney general on child porn cases.

Department of Justice figures show Indiana had 166 arrests for manufacturing, distributing or possessing child pornography in 2011. New York City's task force made just 16 arrests, and Chicago 71.