Max Armstrong shares insight on new research at Yale University looking at animal stress. However, the People for the Ethical Treatment of Animals - PETA - has characterized the new work as cruel. The association also put the researcher's home address online as well, which has brought threats to the scientist.

Farm Progress America is a daily look at key issues in agriculture. It is produced and presented by Max Armstrong, veteran farm broadcaster and host of This Week in Agribusiness.

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