Tight new security measures aimed at preventing terrorism mean that postdocs and students travelling to the United States need to make plans a long way in advance and expect delays, says Karen Kreeger.
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Karen Kreeger is a freelance science writer based in Philadelphia.
- Karen Kreeger
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Kreeger, K. Access delayed. Nature 422, 96–97 (2003). https://doi.org/10.1038/nj6927-096a
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DOI: https://doi.org/10.1038/nj6927-096a
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