Having spent years reporting on the War on Drugs, Lisa Ling offers her perspective on marijuana.
Cataracts have blinded Lake, a sweet retriever mix. Dr. Patti hopes surgery will help restore at least some of her sight.
Border patrol agents pursue a group of illegal immigrants moving through the desert at night.
NBC's Roy Neil remembers Wernher Von Braun, a German engineer who built terror rockets for Hitler and then helped lead the United States to its leadership in space.
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