This Week in Science

The FBI is working to quell skepticism surrounding its asserton that Bruce Ivins was behind the 2001 anthrax attacks. During two press briefings, agency reps laid out how they built their case with a mix of science and detective work. First, CDC analysis of the anthrax powder showed that it was not a uniform population, and then Paul Keim's group sequenced the variants' DNA.

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Gene drives might run into biological resistance, the Economist reports.

Forensic experts exhumed painter Salvador Dalí's body to collect DNA for a paternity test, CBS News reports.

Yale Environment 360 writes that synthetic and conservation biologists aren't always on the same wavelength, but they are trying to reach an understanding.

In Science this week: full CRISPR locus integration complex structure, and more.