Homi Kharas, senior fellow and co-director of Global Economy and Development, discusses his report, "The unprecedented expansion of the global middle class" and explores the challenges and opportunities this brings in emerging and developing economies.  Also in this episode, Molly Reynolds, fellow in Governance Studies, provides her regular “What’s Happening in Congress” update. This week: the investigative options available to Congress and the impact on the Republicans' legislative agenda.  Subscribe to Brookings podcasts here or on iTunes, send feedback email to BCP@Brookings.edu, and follow us and tweet us at @policypodcasts on Twitter. The Brookings Cafeteria is a part of the Brookings Podcast Network.