Carl,

For the moment this story is not going away!

Within the linked report is:
....defenders of the ANC-linked interpreter claimed that he was signing in South Africa's Zulu language.
Citing a UK academic expert on sign language:
Professor Woll dismissed such claims, allegedly made by the ANC: "The very fact that this was explained as a person signing in Zulu suggests that actually whoever employed him knew nothing about this person's abilities."
Link:http://www.telegraph.co.uk/news/worl...terpreter.html