Check out this article and video. Mainly this is about a software glitch in which the cameras software doesn't work as well with darker people. (it's a problem with the lighting and how darker people don't reflect light as well) Aside from that, look at the comments. Just some of the most racist stuff like "Black Desi is just another fucking nigger complaining that white people are holding him down when really he is just holding himself down by doing stupid shit like this."
Here's the cnn article --> http://www.cnn.com/2009/TECH/12/22/hp.webcams/index.html