Firefighters worked to rescue a worker trapped for hours beneath the rubble of a medieval tower that partially collapsed while under renovation in the heart of Italy’s capital on Monday, critically injuring another worker. Firefighters faced a complex task as the structure continued to give way as they tried to get near the trapped worker through a first-floor window of the Torre dei Conti, forcing their retreat on telescopic aerial ladders in a cloud of smoke. Another approach on two ladders...