We can't just strike back and go back to sleep. Next time the attack could be even more serious. Soon terrorist groups will have access to nuclear weapons. This is inevitable. Countries like Russia and China are providing countries like Pakistan, Iraq and Iran with this technology, the same technology Clinton gave to the Chinese.
Missile defense is needed now.
The media is dead wrong when it says this proves we don't need missile defense. Soon, the same counties that supported these terrorists that just attacked us will have missiles capable of hitting the U.S. We need to defend against their use. No additional attacks for the immediate future. I believe they reached the limits of their capabilities with these attacks. But they will try again later.