Gas stoves are found in around 40% of homes in the United States, and they've been getting a lot of attention lately. A recent interview with Richard Trumka, the commissioner of the U.S. Consumer Product Safety Commission (CPSC), quickly became fodder for outrage, viral disinformation and political fundraising after he proposed regulating the appliance. The proposal stems from a growing body of research suggesting gas stoves are unhealthy — especially for those with asthma, chronic obstructive pulmonary disease and children. NPR climate and energy correspondent Jeff Brady joins us today to separate fact from fiction.