The Houston Metropolitan Transit Authority said Wednesday that it had received a $14 million refund from a Spanish rail-car vendor as part of a settlement over two disputed contracts for the expansion of the city's light-rail train lines. Metro said it had reached a settlement in December with CAF USA Inc., a subsidiary of the Beasain, Spain-based Construcciones y Auxiliar de Ferrocarriles S.A., after the Federal Transit Authority ruled in December that the contracts violated federal procurement law and “Buy America”...