President Obama presents his evidence for war.
CNN has obtained some new shocking images of the aftermath of another alleged chemical weapons attack in Syria.
Seven people died and dozens were injured in the alleged attack on a school in northern Syria.
A doctor at a local hospital said, "it's like they used chemicals, like napalm or something. It's causing a lot of burns."
CNN has not been able to independently confirm what happened.
OutFront: General Anthony Zinni, who served as Commander-in-Chief of U.S. Central Command. He led Operation Desert Fox in 1998, which involved a series of airstrikes against Iraq in an effort to destroy that country's weapons of mass destruction program.