Practicing good habits: Nuns waiting at Mexico City International Airport on April 27 don surgical masks to avoid catching swine flu.

实践良好习惯：4月27日，在墨西哥城国际机场等候的修女戴上口罩来防止染上猪流感。

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During Mr. Fox's administration, for instance, a handful of protesters with machetes successfully derailed the government's biggest public works project, a new Mexico City airport.

WSJ: Mexico Arrest of Union Chief Sends Warning

Three Mexican policemen have been killed in a shootout with two other officers at Mexico City's main airport.

BBC: Mexico City airport shootout leaves three police dead

Roberto Sol Cabrera, a Mexican citizen, was stopped at a random check at Mexico City's international airport after arriving from Lima.

BBC: Mexico arrests man with 18 monkeys around his waist