Why would Vietnam need Cuban blood especially at a price of $ 50.00? Did they not have enough donors in Vietnam? How much the blood of 166 Cubans could have helped in Vietnam considering the loss of life in that war. This story is a absolute nonsense and a fabrication. Fake -news you could say -  using the latest catch phrase.. It is in line with Stalin's 30.40,50,60 million killed, or the 10 million especially killed Ukrainians (mind you only the western ones) or the ones circulating back in 30's the Russian communists were eating their babies. It is when common sense fails that one can print nonsense like that.