Rising acidity in the oceans, due to an increased presence of CO2, is bad news for the oyster population. Madeleine Brand does her field report for "SoCal Connected" on how industrial pollution is pushing the pH of the ocean to new never-before-seen levels, and in turn, causing marine animals' protective shells to become weaker and more susceptible to predators. Madeleine Brand discusses gun control with "Washington Post" correspondent Phil Rucker. What is the future of Henry's Tacos? "Los Angeles Magazine's" food blogger Bill Esparza weighs in.