This is how you stunt for publicity: An unlikely assemblage of superstars have banded together to raise awareness about the global clean water crisis by climbing Africa's tallest peak, Tanzania's Mt. Kilimanjaro. That's 19.340 feet, the very typing of which alone seizes my height-fearing heart. The troupe of charitable backpackers includes Santi White, Lupe Fiasco, Jessica Biel, Emile Hirsche, Jacques ...