Ziggy Marley and band performing on stage at Wolf Trap. Photo by Andrew Propp, courtesy of Wolf Trap The afternoon got off to an ominous start with the skies opening and rain pouring down, eerily reminiscent of an earlier concert going debacle. Thankfully, the rain stopped, as if coaxed by the uplifting music of the Bob Marley Roots, Rock, Reggae Festival, held this past Sunday at Wolf Trap. But let's face it, even if......