4.9 What about the US export regulation limitations?

US laws placed restrictions on the export of defense articles, which includes some types of cryptographic software. PGP and ssh, among others, fall into this category. For the sarge release packages in this archive were moved to the main archive (or to non-free, if applicable) due to the US relaxing its regulations on the export of cryptography.

To prevent anyone from taking unnecessary legal risks, certain Debian GNU/Linux packages were only available from a non-US site ftp://non-US.debian.org/debian-non-US/, with numerous mirror sites all of which are also outside of the US, see ftp://non-US.debian.org/debian-non-US/README.non-US for a full list. These sites still exist (for the benefit of users of woody) but its contents are no longer supported and are considered obsolete. Please remove any mentions to non-US from your sources in your /etc/apt/sources.list configuration file.