Philadelphia's Arch St. Methodist is just one of more than 800 churches and synagogues offering sanctuary to illegal immigrants. This is in response to the new crackdown ordered by the Trump administration. Scott Pelley talks to one minister who is taking a stand. Cook County Sheriff Tom Dart runs one of the largest jails in the country -- located in Chicago. It's his unconventional and controversial style that has earned him a visit from Lesley Stahl. When it comes to art -- sometimes you have to be political. Holly Williams meets Chinese artist Ai Weiwei - who has not received the most positive responses to his work.
