FLASHPOINT UKRAINE: Dozens dead in train station attack

At least 50 have been killed and more were wounded during a missile strike on an eastern Ukraine train station. As Ukrainian officials warn that there may be more horrific images uncovered as Ukraine retakes towns previously held by Russian forces, what needs to be done to prove that war crimes were committed? And how the cold war inspired one songwriter to pen a tune about a refugee sending a love letter home over the radio.