As the Los Angeles Times put it:
As part of an information offensive in Iraq, the U.S. military is secretly paying Iraqi newspapers to publish stories written by American troops in an effort to burnish the image of the U.S. mission in Iraq.On his RallyPoint page, Rausch is listed as working for the IOTF in 2006.
Prior to this Rausch was stationed at Fort Trotten as part of the 301st battalion, part of the 151st Theater Information Operations Group, which was tasked with "synchronizing related capabilities comprised of five core functions: electronic warfare, military deception, psychological operations, operational security, and computer network operations."
Psychological operations is known as PSYOPS in the field. PSYOPS create spin, "to influence, disrupt, corrupt or usurp adversarial human and automated decision making while protecting our own." In the past they have attempted to infiltrate American media as well, most notably getting caught at CNN and NPR.
You can read more about this sort of thing in this article from Christopher Hitchens at Slate.