These type of stories are becoming more common in the news with the selfie and social media craze. A 20-year-old woman was taking pictures with her mother at the Grand Canyon. She starts to walk backwards to get a better photo and that's when she losses her footing on a ledge and almost falls! She manages to catch herself, but it could've been way more tragic. Coincidentally a different park visitor standing across a big ridge just so happened to get it on video. You can hear him react as she falls.