Mr. Grijalva’s letters convey an unstated but perfectly clear threat: Research disputing alarm over the climate should cease lest universities that employ such individuals incur massive inconvenience and expense—and scientists holding such views should not offer testimony to Congress. After the Times article, Sens. Edward Markey (D., Mass.), Sheldon Whitehouse (D., R.I.) and Barbara Boxer (D., Calif.) also sent letters to numerous energy companies, industrial organizations and, strangely, many right-of-center think tanks (including the Cato Institute, with which I have an association) to unearth their alleged influence peddling.

Richard Lindzen in the Wall Street journal