[Paleo Conservative]

Here's some really bad news. It's believed that oxygen bottles in the school bus evacuating some nursing home residents caused the explosion.

Bus Explodes on Dallas Highway; Up to 24 Dead

[Grendel9]

Which just means SOMEONE'S tank was loose and rolled
around, striking another tank or some metal object
which ignited a spark. OR, someone aboard lit a
ciggie! We'll probably never know which. Glad to
head the bus driver was removed from any suspicion
by his heroic acts of saving as many lives as he
personally could. He put his own life in jeopardy
going back into that bus so many times.