From White House Studies, Robert J. Spitzer (SUNY-Cortland): Comparing the Constitutional Presidencies of George W. Bush and Barack Obama: War Powers, Signing Statements, Vetoes. Evelyn M. Tenenbaum (Albany): The Union of Contraceptive Services and the Affordable Care Act Gives Birth to First Amendment Concerns. Tenzan Eaghll on a plea to critique the pope’s pity. To walk the world: Journalist Paul Salopek embarks on a seven-year global trek from Africa to Tierra Del Fuego, following in the footsteps of our restless forebears. With "Knockout Game" back in fashion, Rightbloggers revive the old Ooga Booga. Chief of Staff Denis McDonough, the hard charger at Obama’s side, has his hands full (and more). Jonathan Chait on how Obamacare is still alive. Eating their own: Sahil Kapur on the rise of Obamacare McCarthyism. Chomsky versus Dershowitz: Richard Falk reviews Chomsky and Dershowitz: On Endless War and the End of Civil Liberties by Howard Friel. Bill Gates on how you can be a more effective donor. Clive Thompson on Vaclav Smil, the man Bill Gates thinks you absolutely should be reading. Wagner and consequences: Slavoj Zizek on a Lacanian reading of classic operas — the ridiculous excess of mercy. The “evolution” of Little Red Riding Hood: New analysis reveals whether different folktales are related or not. For 20 years the nuclear launch code at US Minuteman silos was 00000000.