links for 2009-07-01 CIA-Contra-Crack Cocaine Controversy Mark Thoma: Should We Pop Bubbles? Matthew Yglesias: Richard Posner Proposes Link Ban Todd S. Purdum on Sarah Palin Mark Kleiman: "Common ground" and the political high ground Todd S. Purdum on Sarah Palin Coleman Fung Center Working Papers Steve Benen: Yes, Al Franken Won Steve Benen: Time's Mark Halperin Is as Insane as Rush Limbaugh Guillermo Calvo and Rudy Loo-Kung: How bad are bubbles for welfare? Economist: Conservative strategery Buttonwood: Super savers Robert Skidelsky: The World Finance Crisis & the American Mission Economist: The deficit as political football Mark Thoma: Incomplete Contracts and Brinkmanship