Without giving a scintilla of credence to the DEBKA report let us examine the plausibility of this situation. If Saddam had three buclear devises he would explode at least one as use at least one as an ace in the hole deterent. If he had three in the USA then he would be effectively holding three American cities hostage to his survival.
I for one doubt his ability to bide his time with such an advantage. Two targets would be almost certain NYC and DC