Baltimore Sun: President Barack Obama’s plans to lead America from recession rest in part on a task bigger than a moon shot and the Manhattan Project, as complicated as any feat of economic engineering in the nation’s history. His goal, which past presidents have spent more than $100 billion chasing with limited success, is to replace imported oil and other fossil fuels with a so-called “clean energy economy” powered by the wind, the sun and bio-fuels. The stakes are high. If Obama succeeds, …