影片报告了二战中，美国第一批黑人飞翔员，降服那时制度和种族上的限制，构成了一支带有测验测验性质的特别的轰炸机护卫队——塔斯克基飞翔（TuskegeeAirmen）。他们的飞机上都画着“红尾巴”，因此这也成为了他们的绰号。“红尾巴”这支美国军事史上第一支由非裔美国人构成的飞翔员编队，因为加进战争培训被派往阿拉巴马州随时预备迎战。在那边…

Foodborne pathogens kill around 3,000 people in the U.S. every year and hospitalize hundreds of thousands more. Romaine lettuce, cantaloupe, sprouts . . . all have been at the center of outbreaks which have become alarmingly frequent in recent years. Their solutions are simple, but protections are scattershot, with lit…