Bomb critically wounds Arkansas medical board head

The chairman of the Arkansas State Medical Board was critically injured when a powerful car bomb exploded outside his West Memphis home as the physician prepared to leave for work, federal and local authorities said. West Memphis Police Chief Bob Paudert said there is no immediate evidence that Trent Pierce had been threatened or took part in controversial medical procedures. Arkansas State Police spokesman Bill Sadler, however, said investigators will meet with board members and other staffers to find out if the attack might have been related to his work on the panel.