A bus driver involved in a Virginia highway crash  early Friday morning that killed at least five people and injured nearly four dozen more has been charged with involuntary manslaughter, Virginia State Police said Saturday.  Jing S. Dong, 48, of Staten Island, New York, was charged with two counts of involuntary manslaughter, with additional charges pending, police said. Dong suffered injuries from the crash.  Police said the bus "failed to slow for traffic" and crashed into six vehicles at