The Chronicle for Higher Education is reporting that the National Academy of Sciences has published a paper on how terrorists could kill tens of thousands of people by dropping a few grams of botulinum toxin into a milk truck or storage silo. The Academy published the paper over protests by the US Department of Health and Human Services. The paper, authored by two Stanford University researchers, was scheduled to have been published in the academy's Proceedings of the National Academy of Sciences a month ago but the academy had held the paper because of the concerns leveled by HHS. The...