Schools and police agencies across the United States are warning families about a viral social media trend involving the “Cat in the Hat” character that authorities say has evolved from an internet prank into a public safety concern. The trend features unsettling images and videos, some believed to be created with artificial intelligence, showing a sinister version of the popular Dr. Seuss character appearing near schools, homes and neighborhoods. According to officials, some posts have also included threatening messages directed at specific communities and schools, The Guardian reported.