A Russian ship carrying nuclear reactors sank. Where was it headed?

A Russian "shadow fleet" vessel carrying submarine nuclear reactors sank in the Mediterranean Sea. CNN's Nick Paton Walsh reports on what happened where it was heading.

0:00 Why did a Russian tanker sink in the Mediterranean? 1:38 Who — or what — pierced the hull? 3:25 Where was it headed? 5:19 Did the US know about the ship?

Watch more CNN here: https://cnn.it/4kh5RPe

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