"Experts" are like fortune tellers--make enough wild-azzed guesses and some of them are bound to be right. People tend to remember the ones that are right and ignore the ones that are wrong. (All except the Nobel committee who will believe anything that follows the liberal agenda.) Mix in that the government is willing to pay big bucks to "experts" and they'll repeat their guesses until they become fact. Dr. Williams and Dr. Sowell are exceptions to the rule.