* Instead of the official census estimate of 6 million, researchers now say the number of illegal immigrants in the U.S. may be between 9 million and 11 million (latest findings reported in the Christian Science Monitor).
* Scientists testing blood and urine in a nationwide sampling of Americans found a 75 percent decrease in the presence of cotinine since 1991. Cotinine, a metabolite created when the body processes miotine, is said to be an indicator of exposure to secondhand smoke (Centers for Disease Control and Prevention report).
* Women, particularly Democrats, face difficulties in winning governorships or the presidency because voters question their toughness and leadership abilities (study by Celinda Lake, a Democratic pollster, Linda DiVall, a Republican pollster, and Democratic researcher Mary Hughes).
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