What can we know about the mind of someone who is just glimpsing death? Ron Rosenbaum describes two alternate endings to Shakespeare's 'Hamlet,' and he and actor Mark Rylance explain the significance of four wordless sounds.
How well can you ever really know the people around you? This hour of Radiolab: a disorder that turns family members into impostors, and a scientific take on newborns that challenges Jad's warm fuzzies.
