This hour of Radiolab, a look at race. 

When the human genome was first fully mapped in 2000, Bill Clinton, Craig Venter and Francis Collins took the stage and pronounced that "The concept of race has no genetic or scientific basis." Great words spoken with great intentions. But what do they really mean, and where do they leave us? Our genes are nearly all the same, but that hasn't made race meaningless, or wiped out our evolving conversation about it.