SIOUX CITY, Iowa (AP) – Animal control workers have removed a total of about 50 cats and carcasses from a house in Sioux City.  Cindy Rarrat, of Sioux City Animal Adoption & Rescue Center, says conditions inside the house Monday were unbearable and unfit for humans or animals.  Law officers executed a search warrant around 4:30 p.m. Monday, and workers started removing the animals. No one was home.  Neighbors say no one has lived in the home for a couple of months.  The hungry, thirsty cats were taken to the rescue center.