A time-honored tactic in political TV ads is to use contrasting degrees of photographic exposure, one bright and snappy for your guy and a darker hue, sometimes even going to old-fashioned black-and-white, for your opponent.
On December 29, at the Washington Post's Wonkblog, Max Ehrenfreund cited a conveniently timed "study" which looked at 2008 ads produced by and on behalf of GOP presidential candidate John McCain, and concluded that the McCain campaign, by using such a tactic, was engaging in racism:










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