[grengineer]

Actually USA goverment works like the CIA World Factbook are public domain only inside USA. According to (S. REP. NO. 473, 94th Cong., 2d Sess. 56 (1976)) section 105 page 59

The prohibition on copyright protection for United States Govern­ment works is not intended to have any effect on protection of these works abroad. Works of the governments of most other countries are copyrighted. There are no valid policy reasons for denying such pro­tection to United States Government works in foreign countries, or for precluding the Government from making licenses for the use of its works abroad.