His feelings were displaced.

So why was Bush upset? Well, it's obvious. The talk of his son's misfortune touched on the real misfortune, his son George's. The father unconsciously fears that he is responsible for George W. stepping in deep do-do, forever and ever in the history books, because the father failed to remove Saddam in '91and the son wanted to set things right. So the father's fears of oedipal parricide have in this case been inverted, and the father feels he has murdered his own son. Thus: the crying jag. (That was free, next time it will cost you $225).