Former U.S. Senator Jon Kyl (AZ) explains three reasons America must lead in Iraq: 1. American Military action – The withdrawal of troops in Iraq has left the U.S. with no influence over Iraqi Prime Minister Maliki. 2. Iran – It would be unthinkable to allow Iran to fill the vacuum that we have created in Iraq. 3. Economic disruption – The conflict in Iraq is creating a spike in worldwide oil prices. When the U.S. is not engaged in the world, helping to maintain a peace and stability, these kinds of effects on world trade can have a dramatic effect on our economic growth.