article_snippet.sent: Yanomami indigenous leader Davi Yanomami claims Americans' 'robbed blood' for the tests .
article_snippet.sent: Yanomami indigenous leader Davi Yanomami spokesman Davi Kopenawa said, 'These Americans robbed our blood. '
article_snippet.sent: These Americans did not say anything in our language about the tests These Americans were going to do.
article_snippet.sent: Nobody knew that These Americans were going to use our blood to do research.'