By HOPE YEN and FRANK BASS AP Writers AP In this May 9, 1999 file photo, emergency workers remove the body of one of the victims of a bus.

WASHINGTON (AP) - Hundreds of thousands of tractor-trailer and bus drivers in the United States carry commercial driver's licenses despite also qualifying for full federal disability payments, and some of those drivers have suffered seizures, heart attacks or unconscious spells, according to a new U.S. safety study obtained by The Associated Press.
The problems threatening highway travelers persist despite years of government warnings and hundreds of deaths and injuries blamed on commercial truck and bus drivers who blacked out, collapsed or suffered major health problems behind the wheels of vehicles that can weigh 40 tons or more.
ht in every state, according to a review

WASHINGTON (AP) - Commercial truck and bus drivers who are medically unfit to drive remain a threat on America's highways, despite government warnings and hundreds of deaths and injuries.
A new safety study obtained by The Associated Press shows truckers violating federal medical rules have been caught in every state. Ohio is one of a dozen states where drivers have been sanctioned most frequently for breaking medical rules, such as failing to carry a valid medical certificate.
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