A North Texas woman says there’s a major safety hazard right in her own backyard — a sinkhole.  Jennifer Grierson knew something wasn’t right when she noticed a crack in her backyard last year. But she never thought that slope would turn into a sinkhole.  “And it goes all the way across my backyard,” she said.  Grierson and her husband rent their home in North Richland Hills.    Read the article…………………