Political term of the day: Dog-whistle Politics
A more recent example of this technique might be his seemingly bizarre statement that Iraq is "just a comma". Some on the left have asserted that this is a reference to the saying, "Never place a period where God has placed a comma." So the hidden, dog-whistle meaning would be "don't judge Iraq just yet, because God has more in store." Ironically, this comma saying is used widely by the progressive United Church of Christ, who attributes it to comedian Gracie Allen. (The UCC was the group that had those ads about religious inclucivity that were deemed too "controversial" to air on major networks.) This makes me wonder whether this particular comment was Bush dog-whistling to Evangelicals, or whether he was just being stupid and contemptuous of all the suffering and death that's going on in that area, or having his usual difficulties with the English language.
Update: Language Log supports my hunch that "comma" is not Evangelical dog-whistling.