This is race baiting at its worst. America has a very conflicted history. The more everyone knows about America's tortured past the better. Slavery, America's original sin, must be understood and that means teaching about it in public schools, private schools, religious schools, etc. This is not about being an "angry mob". It is about knowledge, understanding, compassion, and empathy. I am a product of public education at every level. I love my country but do not like everything about it.