American higher education is being swept by two potentially irresistible waves of change. The first is intense scrutiny of academia’s costs and benefits, driven by soaring prices, student debt, and the ensuing public anger. The second is the emergence of postsecondary models that threaten to replace traditional colleges and universities on a major scale. In this special forum, we’ll look at the threats to accreditors — and through them, schools — stemming from federal reactions to public unhappiness, and at ways to foster quality in the many postsecondary options coming our way.