The incidents included unmanned aircraft above the Hollywood sign in Los Angeles, at college football games and at Andrews Air Force Base near Washington, used for President Obama’s flights. The FAA is trying to bring order to a Wild West atmosphere in which a new breed of drone operators hasn’t yet learned aviation safety. The maker of digital video recorders said its subscriber base increased to 5.1 million in the third quarter, up 32 percent from a year earlier, partly because people are drawn to new features such as the Amazon link. The holiday shopping season kicks off Friday as an estimated 140 million U.S.