wasn't the early report that he drove on, even though the brake on that wheel was malfunctioning?
The report I heard was from a Mr. Wilson who survived the fire. He was on a stretcher when they interviewed him. He said they had one flat tire, and DOT helped the driver fix it. He said after about 2 miles they heard another pop and then the fire. Mr. Wilson was trying to re-tell the story when a reporter interrupted him. As far as the driver going back into the bus I saw that on another clip from an article off of Google News. I will try to look through my history page and get that link.
I did not hear a report that there was a known problem with the brake when he continued after fixing the tire. I will admit though I haven't read or watched any follow-up reports for several hours regarding the bus fire.