Neda Maghbouleh, Ariela Schachter, and René Flores explore the US Census classification of people with Middle Eastern and North African ancestry.

Origin of the Great Unconformity

Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us.