MLK beyond US borders, dispatching troops to the US-Mexico border and "wormholes to the world"

Today we remember the Rev. Dr. Martin Luther King, Jr. and how two international trips he took influenced his message here at home. Also, a former Homeland Security official appraises President Trump's idea of possibly sending the military, or National Guard, to the US-Mexico border. And reporter Lidia Jean Kott tells us about a video portal that's giving residents of one Milwaukee neighborhood a connection to the rest of the world.