We put a few audience questions to Benedict Cumberbatch, asking him about his most challenging role, where Sherlock Holmes fits in to the characters he's played and how "real" Sherlock is to him.
By Frank Carlson
By PBS NewsHour
Alan Turing is hailed as the father of the computer, single-handedly helping the Allies defeat the Germans by cracking the Nazi Enigma code. But he was also a gifted athlete, a sloppy dresser and defiant in the face of the…
By Rebecca Jacobson, Inside Energy
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