Should Texas Residents Know the Chemicals They're Breathing After the Arkema Plant Explosion?

Hurricane Harvey has been downgraded from a Category 4 hurricane to a tropical depression as it moves over Louisiana and into Mississippi. Texas officials say at least 44 people were killed by the storm and nearly 100,000 homes are damaged by flooding. This comes as a chemical plant about 25 miles northeast of Houston, in Crosby, was rocked by two explosions early Thursday morning. The facility produces highly volatile chemicals known as organic peroxides, and at least 10 sheriff's deputies were hospitalized after inhaling fumes. Officials had already evacuated residents within a one-and-a-half-mile radius of the plant in the town of Crosby, after it lost primary and backup power to its coolant system. Harris County Sheriff Ed Gonzalez insisted in an early-morning press conference that the plant had not exploded, describing the event as a "pop" followed by smoke. But Federal Emergency Management Agency head Brock Long said a plume of chemicals leaking from the plant was "incredibly dangerous." We speak with Matt Dempsey, reporter with the Houston Chronicle who questioned Arkema about what is stored at the plant and who produced the investigative series "Chemical Breakdown," which examined regulatory failures of the chemical industry.