The third carrier is really a non-story. See link.

U.S. Navy sends carrier to Gulf but no build-up - Yahoo! News UK

This is a routine rotation of ships in the region. The third carrier is arriving to replace one of the two carriers that have been stationed in the region.
aardvark Reviewed by aardvark on . US Navy sends third carrier to Gulf http://www.ynetnews.com/articles/0,7340,L-3423660,00.html Could this mean a showdown with Iran? I know they are cracking down on Iran. The Iranians are Shia and the Iraqis are Sunni. The US is arming the Sunnis so they could can help fight Iran covertly. These 2 groups both fight the US and each other. The US basically wants to do what it didn't do in 1979 when the radicals took over. They want regime change. They want a capitalist government/ parliamentary democracy. Actually with the Rating: 5