kind of the fact - - defect with the news feed with these other ways to change people's minds for grosso orwell was prussian to to understand the variety of ways people might be persuaded course of plea -- course of least the american university arizona and author of this perk human programming. booktv on c-span2. meredith wadman talks about the race to create vaccinations. . >> hello everyone welcome to the of book festival i am sarah jackson i am a proud residents and epidemiologist at the university of maryland. read from the support the arts and humanities and their pleas to bring the fabulous event to the generous support of our volunteers. i have a few announcements