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Mark Warner raises issue with Facebook emotion experiments

Chris Graham

U.S. Sen. Mark R. Warner (D-VA) asked privacy and consumer protection experts at the Federal Trade Commission (FTC) to provide more information on recent reports that the social network Facebook conducted an experiment involving nearly 700,000 users to study the emotional impact of manipulating information on their News Feeds.

Earth Talk: Chemicals and obesity

Roddy Scheer

Obesity is a huge problem in the U.S. and other industrialized countries. According to the U.S. Centers for Disease Control and Prevention, obesity rates have doubled for American adults and tripled for kids and teenagers aged six through 19 since 1980. Today, 31 percent of American adults and 15 percent of youngsters are classified as overweight.