WASHINGTON — Princeton University (Princeton, New Jersey) economist Uwe Reinhardt is hardly known for reticence, and he did not disappoint attendees at the first full day's proceedings at TCT 2014, taking square aim at a number of entities inside and outside U.S. healthcare. One of the villains in the U.S. healthcare cost picture is stress, he said, but he also remarked that a physician practice can spend as much as $64,000 a year "interfacing with insurance companies."