When Mark Emmert took over the N.C.A.A. in 2010, he may have underestimated how difficult it would be to bring about change in the way college athletics are governed. American and coalition forces continued air strikes and missile sorties against forces loyal to Col. Moammar Gaddafi as U.S. struggles to hold together crucial coalition partners. The Defense Department has notified Congress that it wants to sell $60 billion worth of advanced aircraft and weapons to Saudi Arabia. The proposed sale, which includes helicopters, fighter jets, radar equipment and satellite-guided bombs, would be the largest arms deal to another country in U.S…. Here are some events that builders and developers have scheduled for would-be home buyers in the coming weeks. All are free and open to the public. A new analysis is raising questions about how good a job the Food and Drug Administration is doing at protecting Americans from faulty medical