Migrants and refugees at the center of tensions along the Greek-Turkey border

Violence has escalated on the small Greek island of Lesbos this week. Clashes intensified after the Turkish government said they were opening their border with Greece, allowing the passage of thousands more asylum-seekers. And, it's Super Tuesday — when 14 states hold their primaries. But many voters concerned about where the candidates stand on immigration polices are still waiting on specifics from most of the Democratic presidential front-runners. Also, nightclubs in Berlin, Germany, have a rich history and cultural significance, but are increasingly under threat due to gentrification and rising property rates. Now, a group is asking the government to give nightclubs the same protections as opera houses and theaters.