[With] the highly contagious delta variant spreading across the U.S., children are filling hospital intensive care beds instead of classrooms in record numbers, more even than at the height of the pandemic. Many are too young to get the vaccine, which is available only to those 12 and over. The surging virus is spreading anxiety and causing turmoil and infighting among parents, administrators and politicians around the U.S., especially in states like Florida and Texas, where Republican governors have barred schools from making youngsters wear masks.