Obama's science adviser explains why a ‘science-savvy' president matters
Dr. John Holdren (Youtube)

WASHINGTON - Some of President Obama's top science staffers called it "the Columbo question." The president had a habit, just like television's favorite detective, of making one last inquiry of his aides when being briefed on science issues. A question that "goes right to the heart of the matter," said his chief science adviser, Dr. John…