A US strike on a girls' school in Iran killed about 170 people, mostly children, and that kind of attack is what creates future terrorists.

• On day one of the war, missiles hit a primary school in Manav, Iran, killing roughly 170 people, most of them young girls.
• The first missile pushed the girls into a prayer room, and a second strike burned them alive inside it.
• Research on suicide bombers shows 25% had a friend or family member killed in a conflict.
• Most attackers are not radicalized in religious schools — fewer than 5% come from madrasa brainwashing, and 10% are actually Christian.
• The biggest driver of terrorism is plain anger at civilian deaths, not religion.

Outlook: Strikes like this will likely fuel a new wave of attacks against Americans in the years ahead.