Former Deputy National Security Advisor Victoria Coates says that last night the Houthi rebels — who are proxies of Iran and Yemen — fired off a ballistic missile at Israel. This is the first time anyone has shot a ballistic missile at Israel since 1991. "The Arrow 3 Air Defense System, which is a joint Israeli-American system, was fired for the first time to intercept this thing," Coates said. "The good news is it worked. The bad news is we had to use it."