CHARLOTTE, N.C. — Channel 9 learned a plane that sparked a security scare at the airport last week was escorted by two fighter jets. But many questions remain about what caused a security scare Friday on a Charlotte-bound U.S. Airways flight. When U.S. Airways Flight 744 from Dallas landed in Charlotte Friday, the FBI kept passengers on the plane while agents questioned the crew and nine passengers. One passenger, Eric Pillmore, said a police officer told him a threatening note had been found on the plane. Meanwhile, some travelers said they deserve to know more about what that note said....