I don't think Bush's comment was a slip. I think it was intentional, aimed at Syria.
Bingo. It was a "slip" as much as Regan's "We just outlawed Russia, and the bombing starts if five minutes." Psychological warfare, and a secret handshake to the world that we know exactly what is going on in the "Arab street." You notice that the pali's "Arab brothers" aren't issuing a peep on this.