Under current policies the federal debt will rise from 78% to almost 180% of U.S. GDP in three decades. In his new book, "," Brookings Senior Fellow explores policies to raise revenue, control spending, and increase public investments, and solve our debt problem. In this episode, Senior Fellow interviews Gale about his new book and policy ideas. Also, , a fellow with the USC-Brookings Schaeffer Initiative for Health Policy, answers a listener's question about why health care costs so much in the United States. Subscribe to Brookings podcasts  or on , send feedback email to , and follow us and tweet us at  on Twitter. The Brookings Cafeteria is part of the .