The McCain electoral strategy is coming into focus: they figure their only hope is to get American to think that a dark-skinned Democrat must be a terrorist. Why else highlight letters that spell out something like “Al-Qaeda Commentary” over a picture of Sen. Obama? (The full video is the McCain site under “Obama on Iraq”.
Subliminal ads are nothing new for the GOP (see for example Subliminal Seduction, GOP Style). And the guy making McCain's commercials? He's the guy who did the famous “RATS” commercial for Bush. (For details see here and here.)