What have they got against the Mexicans? Two years ago the unfolding H1N1 epidemic revealed a streak of anti-Mexican racism within the Beijing foreign policy bureaucracy, but it takes much less to encourage Taiwan's politicians to show themselves as arrogant haters of things Mexican. All the politicians needed was a survey in Foreign Policy magazine that ranked Taipei City as No. 34 among the world's most favorable urban sites, a fall of six point from last year's No. 39 slot. A mayoral election is coming up, so the out-of-power (and likely to remain that way: Taipei citizens vote the party, not the policy) DPP blamed the slide on the current mayor's performance. "The ranking of Taipei City fell from 34th to 39th," he said. "Mexico City, on the other hand, was ranked 30th," he quickly added. What does he have against Mexico City that he seems to naturally expect it to rank lower than it did, and certainly far lower than Taipei City? There's an un...