by Stacy A. AndersonAssociated Press WASHINGTON (AP) — Nicole Ari Parker was motivated by frustration. For Star Jones, it was a matter of life or death. Toni Carey wanted a fresh start after a bad breakup. All three have launched individual campaigns that reflect an emerging priority for African-American women: finding creative ways to combat the obesity epidemic that threatens their longevity. AMAZING TRANSFORMATION--This combo image from Feb. 5, 2005 in Los Angeles, left, and Feb. 15, 2012 in New York, right, shows TV personality Star Jones. (AP Photos, File)