http://www.dailykos.com/story/2015/10/05/1427877/-Why-in-the-hell-did-it-take-a-random-viral-video-for-McGraw-Hill-to-fix-this-mistake-on-slavery
"Here's the thing: Updating the digital version and all future versions of the textbook is simply not enough. Schools need to remove these textbooks and replace them with the updated version, at McGraw-Hill's expense. The idea that one more child, of any race, will be subjected to this foolishness is completely unacceptable."
