Here is an excerpt from a book about public distrust in general, by Mark Lilla, The Tea Party Jacobins, New York Review of Books, May 27, 2010:
But as the libertarian spirit has spread to other areas of our lives, along with distrust of elites generally, the damage has mounted. Take health care. Less than half of us say that we have “great confidence” in the medical establishment today, and the proportion of those who have “hardly any” has doubled since the early Seventies.12 There are plenty of things wrong with the way medicine is practiced in the United States, but it does not follow from this that anybody can cure himself. Nonetheless, a growing number of us have become our own doctors and pharmacists, aided by Internet search engines that substitute for refereed medical journals, the Food and Drug Administration, and the Centers for Disease Control.
The trends are not encouraging. Because of irrational fear-mongering on the Web, the percentage of unvaccinated American children, while thankfully still low, has been rising steadily in the twenty-one states that now allow personal exemptions for unspecified “philosophical and personal reasons.” This is significant: the chance of unvaccinated children getting measles, to take just one example, is twenty-two to thirty-five times higher than that of immunized children.13 Americans currently spend over four billion dollars a year on unregulated herbal medicines, despite total ignorance about their effectiveness, correct dosage, and side effects. And of course, many dangerous medicines banned in the United States can now be purchased online from abroad, not to mention questionable medical procedures for those who can afford the airfare.14
Americans are and have always been credulous skeptics. They question the authority of priests, then talk to the dead15; they second-guess their cardiologists, then seek out quacks in the jungle. Like people in every society, they do this in moments of crisis when things seem hopeless. They also, unlike people in other societies, do it on the general principle that expertise and authority are inherently suspect.