$summary At point nĀ° 3 Security-Enhanced Linux point to http://www.nsa.gov/selinux and it should be point to http://www.nsa.gov/research/selinux/index.shtml Thanks
Have fixed the link ago, thanks for the pointer: http://git.overlays.gentoo.org/gitweb/?p=proj/hardened-docs.git;a=blob_plain;f=html/selinux/index.html;hb=HEAD
Since the fix is already published on the official docs I asked blueness to close this. Thanks blueness :D