(SACNS Africa; Social Justice South Africa)
This would seem to be an accident, given the firewall is officially only meant to block malicious or the like sites, and blogger is not so
http://Blogger.com / http://draft.blogger.com is either down, or has been blocked by the RSA South African firewall! Please unblock it if 2nd!
Update: it has certainly been blocked by the state firewall, as other draft.blogger.com addresses do in fact work. This would seem to be an illicit blocking.
Update II: blogger.com, has tested as working now. draft.blogger.com is still registering as blocked.
Update III: draft.blogger.com also seems blocked internationally, it is possible, that the blocking registered would be licit.