What is something on youtube that has moved you to tears?

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I don't know whether I would call it a moving screen.... seems more like a bear hug to me.

 

that carl sagan music video that someone on here posted totally captured my heart. i watch it almost every day and always get a little misty eyed.

 

My wife cried when she saw the lion and his old trainers reuninion in the wild
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Good one. Reposts make everyone cry.

 

He beat me.