A photo exhibit at the United Nations is displaying images depicting torture and other atrocities committed by Bashar al-Assad's regime. Taken between 2011 and 2013, they show approximately 11,000 deaths.
The photographs were taken by a crime scene photographer for the Syrian military who now goes by the pseudonym Caesar.
Caesar smuggled the photos out of Syria on flash drives. The photos were brought to the U.S. last July with the help of the Coalition for a Democratic Syria.
"Anyone who has seen the images will never forget them," U.S. Secretary of State John Kerry said last week in a speech to the U.N. Human Rights Council in Geneva. "It defies anybody's sense of humanity."
Mary Ann Georgantopoulos is a reporter for BuzzFeed News and is based in New York.