Alan Caruba, from the CDFE website

Alan Caruba is a public relations professional who is so anxious about issues like environmentalism, immigration and the United Nations that he runs the National Anxiety Center. Caruba, who states on his website that his clients include or have included "chemical and pharmaceutical companies, think tanks [and] trade associations," writes a weekly column, called "Warning Signs," which is run by conservative websites.

In last week's column, Caruba, an "adjunct fellow" at Ron Arnold's anti-environmentalist Center for the Defense of Free Enterprise (CDFE), expressed anxiety over our SourceWatch article on his friend Michael Fumento. The title of his column was "Smearing Conservative Writers."