Progress Report on Development of the Integrated Wireless Network in the Department of Justice, Audit Report 07-25, March 2007: “Just to replace DOJ’s antiquated legacy wireless communications equipment would cost DOJ approximately $900 million. However, the DOJ will require more than twice that amount to fund its share of IWN. Consequently, for the DOJ, DHS, and Treasury to complete IWN as planned, a major infusion of funding will be required over the next several years.”