Ezra Klein writes an opinionated blog on economic policy, collapsing banks, cap and trade, health care reform and pretty much anything else you can attach a chart to. His blog points to the hottest policy ideas on the Web and provides his own up-to-the-minute take. Before coming to The Post, he was an associate editor at the American Prospect. Klein has appeared as a guest on CNN, MSNBC, NPR and C-SPAN.