Mahmoud Khalil, a Palestinian activist and green card holder, talks to Christiane Amanpour about being detained by ICE for months, and missing the birth of his first child.

"It was a very, very dehumanizing experience, for someone who was not accused of any crime, whatsoever," said Khalil, a green card holder who was held for more than 100 days without being charged with a crime. Driving the news: Khalil said the administration inaccurately conflated his pro-Palestinian speech with supporting terrorism.