Juliette Kayyem: “The lie leads to the violence, you can't deny it anymore.”

You cannot fight an urban war like this without Israelis being vulnerable, especially given the intelligence setbacks that we know exist.

The Secret Service and the Department of Homeland Security do not owe Donald Trump anything anymore.

This is not only a school, it's also a religious school. These should be safe places, and we need to honestly get our act together as a country if we keep doing this.

The big lie is direct -- directly motivates violence, because in the white supremacist viewpoint, and in these radicalized groups viewpoints, when something is stolen, they can rightfully use violence to get it back.