Final answer:
Various individuals, such as U.S. soldiers and CIA personnel, led the training in torture practices in different contexts, such as the Abu Ghraib prison during the Iraq War.
Step-by-step explanation:
The training in torture practices was led by various individuals, such as U.S. soldiers and CIA personnel in different settings.
For example, in the context of the Iraq War, the abuse of prisoners of war by U.S. Army troops and CIA personnel at the Abu Ghraib prison in 2003 and 2004 involved torture and was documented by photographs.
Additionally, the controversial use of torture techniques, like waterboarding, in places like Guantanamo Bay raised ethical and moral questions.