U.S. plagued by record-breaking heatwaves

Summer temperatures in the southern U.S. are soaring to new extremes for prolonged periods of time, with experts concerned about how long people can withstand these heat waves. Jackson Proskow reports on the desperate measures to keep cool, and why scientists are also worried the heat could negatively affect the U.S.’s hurricane season.

• U.S. congressman goes on ‘thirst strike’ for worker heat safety protections