Officials with the U.S. Food and Drug Administration are reviewing the safety of the antibacterial chemical triclosan in light of recent studies that have linked the chemical to hormone changes in animals. Triclosan is found in many consumer products, including toothpastes, antibacterial soaps and cleansers, clothing, toys, and cosmetics. Opponents of antibacterial products such as triclosan say they are no more effective than regular soap and water, and they may be creating bacteria that...