Peter GleickThe United Nations General Assembly this week overwhelmingly backed a resolution declaring the transatlantic slave trade "the gravest crime against humanity".
Three countries voted against it.
The US, Argentina, and Israel.
Dino@petergleick it's not as simple as it sounds. Slave trade is still ongoing in some African countries and the middle East. The ancient peoples traded slaves for centuries, longer than the Americans and British did. Why aren't any of those a bigger crime?