Recently, people have invoked sensitivities to oppose the building of an Islamic center near ground zero (above) and to urge Glenn Beck to move his rally at the Lincoln Memorial — which took place on the 47th anniversary of Martin Luther King Jr.'s "I Have a Dream" speech. Seth Wenig/AP Photo hide caption

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Geoff Nunberg says that pop singers such as The Beatles and Elvis Costello may have visited wordplay from time to time -- but country music lives there. iStockphoto.com hide caption

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Sarah Palin's use of the nonword "refudiate" set off a storm of mockery -- and support -- among partisans. Rich Pedroncelli/AP hide caption

itoggle caption Rich Pedroncelli/AP

A Twitter haiku / A tiny Internet thought / That people enjoy. iStockphoto.com hide caption

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