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

Scott Gray casts his line into the water while son Eric reties a knot on his hook while the two fished at Long Lake Park in Port Orchard, Wash. on Thursday, July 5, 2012. The National Weather Service says the high pressure system responsible for heat in much of the country is building into the Northwest this weekend. (AP Photo/Kitsap Sun, Meegan M. Reid)