We take a deep dive on the story of the week, which could become the story of the year: Zika virus. The W.H.O. just sounded the alarm, travel advisories are in effect, and an action plan could come as early as next week. But what exactly *is* Zika virus, and how will it affect your travels this year? Plus, we look at the passport renewal crunch, the worst TSA checkpoints, and the psychological strain of overhead bins.
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