An analysis of scandals involving Arnold Schwarzenegger and former International Monetary Fund managing director Dominique Strauss-Kahn. Also: a report on infomercials and products promoted on them includes interviews with celebrity product spokespersons Suzanne Somers and Cher, and a Federal Trade Commission official; and a segment on Consumer Reports testing of products "seen on TV." Jim Avila, Deborah Roberts and Becky Worley report.