Go pick up an issue of the Navy or Marine Corps times. We always have and always have had ships and units strategically placed throughout the world for decades and for various reasons.
The world was coming to an end when the Soviets detonated their first nuclear bomb after we dropped ours on Japan. The world was coming to an end when communists were going to take over the world because South Vietnam fell to the North. The world was coming to an end when Pakistan developed nukes because they were going to destroy India as soon as they could, and vice versa. The world was coming to an end when China developed nukes....

No need to educate myself on USN deployments. I did 2 of them myself and I can tell you from experience that we didn't hang out off the coast of Syria or any other nation very long. Well except that one time in September 2001. The typical carrier group deployment for the past 10 years has been pretty much haul ass across the Atlantic, cruise through the Med, get through the Suez canal at the first window and get into the Persian Gulf. Seeing as how the Bush, at my last update anyway, had not gone through the Suez and are hanging out on the Eastern end of the Med, something has changed and the Joint Chiefs want some major forward presence there.
I'm not saying the entire world is going to end. Look at recent events in the region though, then look at who has Israel's back. We don't and that's for sure, particularly given the Obama administration's lack of support for them since day 1. They are very much a cornered animal right now, with Iran in possession of assembled nuclear warheads and a not to long ago statement from Iran's leader that he desires to wipe Israel off the planet. Israel has shown in the past that they will in fact execute pre-emptive strikes, against Iran no less, in order to defend themselves from a threat. Now that their long time best friend has shunned them, I fully expect something from them in the next few months. Once that happens all hell could break loose. All the Muslim nations surrounding Israel just might say to hell with it and throw what they've got at Israel.
But sure, go ahead and roll your eyes like a teenager who just heard something they don't want to hear. Just don't ignore the whole big flick while you're at it.
A little update. It appears Bush will be home next week I'm unsure what carrier will assume 6th fleet duties. Currently the Lincoln is on a world cruise on her way to Portsmouth for refueling. The Vinson is underway, as is Stennis. Stennis is in the Persian Gulf currently which means they are 5th fleet. Bush is hauling butt for home which means they will shortly be relieved of 6th fleet AOR.