NTSB

Jennifer Homendy's comments come after the NTSB determined a 2022 Oklahoma crash that killed six teens was caused by a driver who likely was impaired by recent marijuana use and distracted by passengers.

Breath tests after a college football game revealed that many designated drivers had been drinking. Researchers say their alcohol levels were lower, on average, than people who weren't going to drive. But the findings suggest more education is needed.

Older people are much more likely to be killed crossing the street, according to the Centers for Disease Control and Prevention. And men are more likely to be killed than women, regardless of age.