Of late, medical identity theft has become more common, with thieves feasting on the layers of financial information available within many charts. But security vendors already are fighting back. One new technology that holds promise for cutting down on such thefts--and driving costs out of the system--is iris-scanning technology. Such technology, which already is used in airports and immigration security, scans a patient's iris to use as a unique means of identifying that patient. This approach can help make sure that the right patient gets the right bill, as well as matching patients correctly with medical histories, vendors say. Article