PoliticsLIVE: Why is Germany still so divided 36 years after reunification?

Germany is marking German Unity Day with the main national celebrations taking place in Bremen, where President Frank-Walter Steinmeier is due to speak. More than 400,000 people are expected at the public festival, which runs through Sunday. On October 3, 1990, five former East German states joined the Federal Republic, formally ending the post-World War II division.