An american air - transport industry hobbled by the bankruptcy of some of its biggest companies hurts more than itself ? especially because it also shelters behind a deeply inefficient ban on foreign ownership 为其最大的几家公司破产所困扰的美国空中运输业，伤害的不仅仅是它自己?尤其因为它也是躲在一个非常缺乏效率的禁止国外投资收购的禁令后面。
