Do not give PGP to anyone outside the U.S.
Do not put PGP in a place (e.g. anonymous ftp) from which it can be accessed from outside the U.S. It is classified as a munition and subject to export controls as such.
There is a PGP version 2.6ui ("unofficial international") available overseas. It is compatible with the U.S. versions and can be used outside the U.S. to communicate with non-U.S. correspondents. Do Not Import It Into The U.S.!