Physician-geneticist Francis S. Collins, who successfully led efforts to map the human genetic code, is the top choice for the National Institutes of Health (NIH)’s next director, according to a source familiar with the selection process. Screening for Collins is nearly complete and President Obama may announce his nomination as early as this week, the source reportedly told Bloomberg News, which broke the story. Should he be tapped for the spot, Collins would be faced with calls to boost spending on cancer research and free science from politics as well as financial conflicts of interest. As an agency of the...