Bill King, former mayor of Kemah, Texas, and the head of a study that investigated the fallout from Hurricane Rita, joins Chuck Todd to talk about the decision to shelter in place in the face of heavy flooding from Hurricane Harvey. 

MSNBC's Jacob Soboroff says that he didn't grasp the true scope of the opioid crisis until he began traveling across the nation and talking to people on the ground.

Emer Reynolds’ latest film project, The Farthest, tells the story of the Voyager spacecraft, the first man-made objects to leave the solar system.

When director Cullen Hoback began work on his latest documentary, "What Lies Upstream," he hoped to find out why it took months for local officials in West Virginia to investigate chemically contaminated tap water.

But his initial investigation into chemically polluted drinking water in West Virginia soon expanded into a far-reaching analysis of local regulators’ inability, and in some cases unwillingness, to safeguard the people and resources they were entrusted to protect.

Bryan Fogel, the director and star of "Icarus," a new documentary about doping in sports, joins Chuck to explain how he stumbled onto Dr. Grigory Rodchenkov, Russia's lead scientist for the country's doping program.