> A pilot experiment more than a decade ago to bury the DDT [at the Palos Verdes superfund site] under a thick cap of clean sand showed mixed results. Then samp

> A pilot experiment more than a decade ago to bury the DDT [at the Palos Verdes superfund site] under a thick cap of clean sand showed mixed results. Then sampling in 2009 suggested that most of the DDT had mysteriously vanished — prompting a burst of headlines and more internal paralysis. The longtime project manager unexpectedly retired, and many of the scientists who had dedicated decades of their careers to the chemical have also either retired or moved on. The fact that DDT outlasted the scientists' careers is another strike (among many) against untrammeled libertarian free market thinking.