Gasoline or diesel fuel are petroleum based end products, thus it is oil. Water don't mix with oil and oil has the tendency to float on the top of water allowing the fuel to remain ignited. If you try to put water on a fuel fire, you would actually cause the fire to spread, because the oil is going to go immediately to the top of the water, and go where it goes. Water will only move the fuel around, spreading the fuel fire and causing more damage. Better smother the fire with something non-flammable such as a safety blanket, flour, baking soda, soil, or use a proper fire extinguisher.</span>
There is always one cabinet member left behind in a secure facility in case there is a catastrophic attack during the State of the Union. The member left behind is in the line of succession and therefore will lead the country and rebuild the Government after the attack.