A Waterloo day care provider has been arrested for allegedly mistreating children in her care, according to the Waterloo Cedar Falls Courier. 23 year old Marie Jenkins, who runs a daycare out of her home, has been charged with three counts of misdemeanor Child Endangerment. Video obtained by police allegedly shows Jenkins picking up an 18 month old girl by one arm and swinging her around before then yelling at the child. Another video allegedly shows Jenkins yanking an 8 month old girl out of a high chair by one arm and throwing her on the living room floor. Jenkins has been released pending trial.