Air fuel bombs are some of the most explosive bombs we have and can even rival small nukes in explosive power. An air fuel bomb disperses a fuel (like gasoline or propane) and then ignites it. It makes a very big bang, to say that a bombs made with gasoline and propane are not very good is stupid. But then we all know that everyone associated with msnbc is stupid.
I wonder if it was a fuel air bomb. One charge to disperse fuel in the air over a given area, a second charge shortly after to ignite and make one hell of a blast.
It would seem that msnbc is not aware of the effectiveness of such a device which does employ fuel.