Columbia Journalism Review: The small makeup room off the main floor of KUSI`s studios, in a suburban canyon on the north end of San Diego, has seen better days. The carpet is stained; the couch sags. John Coleman, KUSI`s weatherman, pulls off the brown sweatshirt he has been wearing over his shirt and tie all day and appraises himself in the mirror, smoothing back his white hair and opening a makeup kit. “I kid that I have to use a trowel, to fill the crevasses of age,” he says, swiping powder under one eye and then the other….