More than 50 international speakers ? including the first ladies of Rwanda and Zambia and Democratic presidential contender Hillary Clinton ? will gather at Saddleback Valley Community Church in Southern California on Nov. 28 for three days to mobilize local churches around the world to help prevent HIV/AIDS and care for its victims. Saddleback Church attracts some 22,000 people to services each week. Pastor Rick Warren, author of the best-selling inspirational book “The Purpose Driven Life,” is one of the most charismatic leaders of America’s 60 million-member evangelical community. (Reuters)