Before this month’s semiquincentennial celebration, the United States’ last milestone anniversary was in 1976–during a difficult period. “The 1970s were a rough time–9 percent unemployment, 15 percent inflation, violent crime tripled, divorce rates tripled. It was a rough time,” says David Brooks, staff writer for The Atlantic. Still, he says, it was a unifying and uplifting moment. He asks Danielle Allen, Reihan Salam, Martha Jones, and Shilo Brooks how today is different from the bicentennial and whether the original ideas that bound us together–laid out in the Declaration of Independence–still apply. Allen is political science professor at Harvard; Salam is president of the Manhattan Institute; Jones is a professor at John Hopkins University; and Shilo Brooks is president and CEO of the George W. Bush Presidential Center.