The U.S. economy’s troubled banking sector is under fire. Investments banks are being absorbed by commercial banks and Americans are afraid for their money. Michael Lind, a fellow at the New America foundation, has a solution: postal banks ? small banks set up through your local post office. These banks once were a key part of the U.S. banking sector. Can they be once more? Guest: Michael Lind, a fellow at the New America Foundation, where he directs the American Infrastructure Initiative.