Nuclear Security Initiative Act of 2003

[AI summary unavailable — showing source text] Nuclear Security Initiative Act of 2003 - Declares it is the policy of the United States to seek to cooperate with the Russian Federation and each other independent state of the former Soviet Union to: (1) effect as quickly as is reasonably practical basic security measures at each facility in the Russian Federation and each such state that is used for storing nuclear weapons or nuclear materials and is not yet protected by such measures; (2) the Russian Federation to accelerate the closure of facilities in the Russian Federation used for the production of nuclear weapons; (3) improve the security at facilities, in the Russian Federation and each such state, that contain radioactive materials that could be used in radiological dispersal devices; and (4) improve border controls and other measures to track and intercept illicit transfers of weapons of mass destruction and the materials and technologies for developing and producing such weapons. Authorizes the Secretary of Energy (Secretary) to expand the International Nuclear Materials Protection and Cooperation program of the Department of Energy to encompass countries other than the Russian Federation and the other independent stat…