At least 27 died in one of the worst disasters ever for summer camps. The tragedy shines a spotlight on America's camps and whether they're safe.

Brooklyn and Bailey McKnight's little sister, Paisley, was at a camp on a smaller arm of the Guadalupe River. The 14-year-old was "just miles" away from Camp Mystic in Central Texas, which has been devastated by the deadly floodwaters spurred by extreme rainfall on July 4.