Stat: 44 percent. The percentage of Americans who think the public doesn't know enough about science to understand new findings in the news. Story: Ira Flatow, the host of "Science Friday," has been with National Public Radio since it went on the air in 1970. Although he knows the public loves science, he's worried that most people don't know how the scientific process works. Pew's Dan LeDuc talks to him about why critical thinking is crucial, who asks the best questions, and how science can be addictive.