Mystery death of the airship "Hindenburg"

The death of the ocean liner Titanic, the Chernobyl accident and the collapse of the airship "Hindenburg" - the three biggest causes of accidents 20 century, occurred on the water, on land and in the air, experts argue so far.
"Hindenburg" - the pride of the Nazis - was burned in 1937. What version of his death is now regarded as the most accurate?