Sent_en: 2zh The US has increased its airport security following the failed attempted December 25 bombing of a Delta flight by a Nigerian man with explosives in his underpants.
Sent_yy: 12月25日，一名在内裤中携带爆炸物的尼日利亚男子试图袭击达美航班失败后，美国增加了机场安检。