According to this:

The U.S. federal government launched a new initiative Wednesday aimed at cracking down on child predators.

The program -- dubbed Operation: Predator -- is designed to protect children from pornographers, child prostitution rings, Internet predators and other criminals.

Homeland Security Chief Tom Ridge announced the program along with the host TV's "America's Most wanted" John Walsh in Washington, D.C.

They deserve each other.

Glenn tries to make this out to be mission creep; an attempt by the DHS to justify its existence. To a certain extent it is; I for one would love to join in a jolly game of DHS-bashing.

However, note that this program is going after illegal alien pedophiles et al., and that it's administered by the Bureau of Immigration and Customs Enforcement, which is part of the DHS. As this page informs we people:

On March 1, 2003, functions of several border and security agencies including the U.S. Customs Service, Federal Protective Service (FPS), and former Immigration and Naturalization Service (INS) were transferred into the Directorate of Border and Transportation Security within the Department of Homeland Security. As part of this transition, these agency functions were reorganized into the Bureau of Immigration and Customs Enforcement (ICE).

So, in other words, to a certain extent this is within the DHS's purview.