The U.S. Immigration and Customs Enforcement agency has accidentally revealed the whereabouts of a future "urban warfare" training facility that is expected to include "hyper-realistic" simulations of homes, hotels and commercial buildings in Chicago and Arizona.

On Tuesday, ICE published an acquisition form for the procurement of "hyper-realistic training devices" for a new training facility for its expanding Special Response Team (SRT) program on the Federal Business Opportunities website.

The immigration agency had sought to redact the location of the new training facility, but failed to do so properly. The agency, which has made this kind of mistake previously, appears to have a systemic information-security problem.

In this case, Newsweek was able to simply copy and paste the document's contents into a word processor and quickly establish that the facility would be built at the Office of Firearms and Tactical Programs' (OFTP) Tactical Operations Complex (TOC) at Fort Benning, Georgia, a U.S. Army post used to prepare soldiers for combat.