http://worldnews.nbcnews.com/_news/2013/12/11/21860157-fake-sign-language-interpreter-at-nelson-mandela-memorial-provokes-anger
Basically there was some random guy at the Mandela Memorial service in south Africa. He was signing literally nothing, just waving his hands around, and nobody took him off stage FOR THE WHOLE SERVICE. Nobody knows who this guy is or how he was even allowed on the stage right next to the speakers.
The terrifying part is that this random guy was within touching distance with some of the worlds leading officials including President Obama.
The security of the event was South Africa's responsibility. Imagine if this guy ended up attacking Obama or any other of the government officials.
Come on south africa, step up your game