US President warns Israel against acting purely out of anger and repeating the mistakes of of the US following 9/11.

"For a nation the size of Israel, it was like 15 9/11s," he said, comparing the "all-consuming rage" both nations felt.

"Justice must be done. But I caution this: While you feel that rage, don't be consumed by it. After 9/11, we were enraged in the United States. While we saw justice and got justice, we also made mistakes."