US officials: Navy boosts carrier presence in Gulf

US officials say the Navy is beefing up its presence in the Persian Gulf region, increasing the number of aircraft carriers from one to two.

The USS Harry S Truman has arrived in the Arabian Sea and was scheduled to take the place of the USS Nimitz, which was supposed to head home. The Navy has ordered the Nimitz, which is in the Indian Ocean, to stay for now. (AP)