Michael Darda, MKM's chief economist, says he expects three Fed rate hikes this year and three to four percent sustainable real U.S. growth. Prior to that, Micah Zenko, a senior fellow at the Council on Foreign Relations, discusses U.S. relations with China and Russia. Dennis Gartman, editor of the Gartman Letter, says he prefers buying gold in Euro and Yen instead of U.S. dollars. Finally, Oliver Chen, a research analyst at Cowen & Co., says there is great long-term opportunity in Costco and Wal-Mart.