Over the past couple of weeks, Chicago law enforcement has been in the national spotlight — and Monday that spotlight got a bit hotter when Attorney General Loretta Lynch announced the Department of Justice will be investigating the Chicago Police Department. Mayor Rahm Emanuel appointed a new head to the Independent Police Review Authority, the agency that investigates police complaints and misconduct. We get a better sense of what happens when the Federal government investigates a big city police department, and whether those investigations result in long-term changes. And in the wake of the Laquan McDonald video, two more videos depicting police using deadly force were released to the public. we talk to two reporters about those newly released police videos, and what happens in them. Plus we get an update on COP21, the climate conference happening in Paris.