For the 75th anniversary of the liberation of Auschwitz, CNN's Wolf Blitzer looks back through the eyes of those who were imprisoned there. Those who lived to tell their stories. Those who, by living the last seven decades with courage and hope, have defied the evil that was meant to destroy them.

White supremacy has become a crisis in the United States. The number of hate groups has soared to a record - over 1000 - and hate crimes are up by double digits. How did this happen? CNN's Fareed Zakaria traces the roots of the current crisis, looks at history to discover how racism becomes a political movement, and he interviews a White Supremacist in an effort to understand the forces driving the dangerous racial moment we find ourselves in.

Known as the oldest hate, antisemitism has taken the lives of millions over the years. Once the hate of extremists, it is now considered mainstream, normal and out in the open, not knowing how we got here and how to stop it.