What’s causing high mortality rates for black moms, infants?

The U.S. has a problem with maternal mortality, especially for women of color. Black infants are more than twice as likely to die as white infants; black women are three to four times as likely to die from pregnancy-related causes than white women. Amna Nawaz learns more from Linda Villarosa, contributing writer to The New York Times Magazine, and Monica Simpson, executive director of Sistersong.