Dr Cook-Deegan argues that testing, unlike pricey drug development, has low barriers to entry and is relatively cheap, so a monopoly is not required to lure investors.

Cook - Deegan博士认为与耗资巨大的药物研究不同，检验方法的研究有着低的门槛，也相对便宜，所以不需要垄断来诱导投资者。

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"For people who have respiratory problems, it definitely is a concern, " Deegan said.

CNN: CDC, EPA: Little risk to public from sites

Never mind altruism, says Dr Cook-Deegan, many people are even avoiding genetic screening that could save their own lives.

ECONOMIST: Genetics, medicine and insurance

Three air samples were taken downwind in Brooklyn, across the East River from Manhattan, said Dave Deegan, an EPA spokesman.

CNN: CDC, EPA: Little risk to public from sites