Racist Tweets

In this tweet by Justine Sacco she makes a racist stereotype by assuming going to Africa will mean she will get AID's which is absuloutly false. There is a high ratio of AIDs in Africa which is true but saying that everyone in Africa has AID's would be a stereotype. Along with " Just kidding I'm white."; she is assuming that everyone in Africa is black by saying she will not get AID's.