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Science  04 Nov 2011:
Vol. 334, Issue 6056, pp. 575-576
DOI: 10.1126/science.334.6056.575-b

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Researchers at the University of Southern California cracked a ciphered code to uncover the 250-year-old writings of a German secret society. And this week's numbers quantify the drop in blood lead levels worldwide as a result of lead no longer being used as a gasoline additive and the accuracy of navigation using Icelandic spars.