The United States might delay activating its proposed missile defense sites in Europe until it has “definitive proof” of a missile threat from Iran, U.S. Defense Secretary Robert Gates said Tuesday.

So, if you might harm us and might have superweapons that we speculate about, then we will go ahead and invade your country and put our young men in harm’s way.

But, if we are considering a system that would defend innocent people from nuclear attack by a method that doesn’t involve pre-emptive bloodshed and risk to the lives of our young…  well, then, we just need to sit tight and do nothing until we have positive proof.