FORT WORTH, Texas, May 16 [Category: BizAerospace] -- American Airlines posted the following news: * * * Powering connections: American Airlines keeps North Carolina thriving * The airline's Charlotte Douglas International Airport (CLT) hub operation injects more than $30 billion into the North Carolina economy and supports nearly 150,000 jobs statewide, according to a recent study. * American's sustained growth has propelled CLT to its status as the third-largest connecting hub airport i  more