Afghan officials say about three dozen Islamic State fighters have been killed by an 11-ton American bomb. The Massive Ordnance Air Blast is also known as the Mother of All Bombs ... US intelligence officials think North Korea may conduct another nuclear test this weekend. It's possible US forces would be ready to launch a pre-emptive strike ... Chicago aldermen say city aviation officers shouldn't be doing United Airlines' dirty work. The lawyer for the Kentucky doctor dragged off a United flight at O'Hare says he's recovering from a concussion, and a lawsuit is likely ... A dozen teachers at the fancy Connecticut boarding school Choate-Rosemary Hall are accused of sexually assaulting students over several decades ... NASA scientists think one of Saturn's moons might support life ... The Blackhawks lost to the Predators in their first game of the playoffs ... the Cubs and White Sox won ... There's a chance of rain on this Good Friday, with temperatures ranging from the low-70s inland and low-50s by the lake.