Norm, I am almost 100% positive that there was an accellerant involved. Depending on what it was, a single spark from an electrical short could have ignighted it - instantly. Breakers would not prevent it.
If you had a gas leak in your house and you flip on the light switch. That house would instantly be blow to pieces with one horrific fire resulting from the gas explosion. No breaker is going to stop that.
SS Norway (12 times) '85 - '97; Radiance OS 06/01; Island Princess 11/04, Grand Princess 11/04/05, Golden Princess 7/21/06, Golden Princess 2/24/07, Explorer of the Seas 12/23/07, Island Princess 11/15/08