is premised on the mistaken belief that water and not foam was used to fight the Pentagon fire. It is a fact that aviation fuel fires should be fought with foam and not with water. At the Pentagon, both were used. The blaze was initially fought with foam, and when it was judged that sufficient jet fuel had burnt off for water to be used, it was. Check out the following pictures. The white stuff sprayed all over the scene is foam.
Note that at this time the top floors had not yet collapsed.
Also, the second photo contains a very interesting feature that is discussed in the article
