Cannabis on a downer

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Sir

Why did you use a down arrow to score the recent US Supreme Court decision banning users from growing cannabis at home (“Scorecard” Nature 435, 724; 200510.1038/435724a)?

The issue of medical marijuana in the United States is controversial. Although there is still no clear definitive scientific evidence for either side of the argument, you seemed to pass judgement on this issue in a one-line statement.

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The arrows used in Sidelines are intended to record changes to the current prospects of the topic under discussion, not to pass an editorial judgement, although in this case their meaning was ambiguous — News Editor, Nature.

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Neumann, M. Cannabis on a downer. Nature 436, 776 (2005) doi:10.1038/436776d

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