Another fun excerpt: "Secondly, participants were asked “Did you read any books about food and agriculture in the past year?” Participants were asked to select “Yes”, “No”, or “I don’t know”. Just over 16% of participants stated that they had read a book related to food and agriculture in the past year. About 81% answered “No”, and 3% answered “I don’t know”. Those who answered “Yes” were asked: “What is the title of the most recent book you read about food and agriculture?” The vast majority of responses were of the form “I don’t remember” or “cannot recall”. Fast Food Nation, Food Inc., and Omnivore’s Dilemma were each mentioned about three times. The Farmer’s Almanac and Skinny Bitch were mentioned twice. One respondent mentioned the bible."
This appears to follow the general pattern that people will lie to interviewers to seem more smart, educated, or intellectual than they are. They don't mention in the study a correlation between those who said yes to reading a book and then couldn't "remember" it when pressed and those who wanted to ban food containing DNA, but I'd be willing put money on their being a correlation.