Unrelenting heat wave bakes half the U.S.; 30 dead

J.C. Click dives from a platform at the McClure Pool, on Thursday, July 5, 2012 in Tulsa. The National Weather Service reported late Thursday that the record-breaking heat that has baked the nation's midsection for several days was slowly moving into the mid-Atlantic states and Northeast. (AP Photo/Tulsa World, Cory Young ) ONLINE OUT; TV OUT; TULSA OUT (REV-SHARE)