Updated

Pakistan has the highest polio rate in the world, and health officials there worry that a phony CIA vaccination program may undermine immunization efforts.

The CIA program was set up in hopes of getting DNA evidence during the hunt for Osama bin Laden. There's no word whether it was successful.

A Red Cross official says anything that compromises the perception and impartiality of medical personnel undermines the activities of medical personnel everywhere. He says that's especially true in areas where health care is most needed, and security most difficult.

Meanwhile, vaccination programs in Pakistan against polio and other diseases have already been hurt by fighting with Islamist militants. And some Taliban commanders have declared vaccines as against Islam.