The lack of clear guidance from the US Food and Drug Administration regarding KRAS testing to target treatment with anti-EGFR monoclonal antibodies for colorectal cancer is affecting sales of such drugs and putting drugmakers in a difficult spot with regard to what they can and cannot say to doctors.

During an earnings call Last week, BMS said confusion over KRAS testing caused fourth-quarter US sales of its colorectal cancer drug Erbitux to slide 2 percent to $179 million from the year-ago period.

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Using DNA to sketch crime victims might not be a great idea, the NYTimes says.

Science has its own problem with sexual harassment. What do we do with the research these abusers produce, Wired asks.

Senate Republicans led by Senator Rand Paul (R-KY) are trying to change how the government funds basic research, reports ScienceInsider.

In Science this week: combining genomics and ecology to better understand the effects of natural selection on evolution, and more.