The official noted that the aircraft carrier USS Nimitz can't stay in the Red Sea much longer as it is already overdue to go home, while destroyer ships in the area will also need to be switched out. "The question is how long do we stay at a certain ... high-readiness level," the official said.
American public opinion
• A new national poll suggests that as Obama prepares to tell a skeptical American public why the United States should take military action against Syria, he's partly to blame for the box into which he's put himself.
• The CNN/ORC International Poll indicates that Americans are divided evenly on whether Obama is a strong leader as well as whether he's honest and trustworthy.
• The poll also found that one in five said they completely understand Obama's Syria policy. A little more than half said they "somewhat" understand the administration's game plan, and about three in 10 said they are not clear about the administration's strategy or don't understand it at all.