Philippine rescuers were racing against time on Monday in a search for possible signs of life more than 24 hours after the collapse of a building under construction in the city of Angeles, with crews carefully removing rocks and surrounding debris by hand. The painstaking manual operation around 80 km (50 miles) north of the capital Manila underscored the difficulty of the rescue effort, carried out under scorching heat, with authorities unable to rely on excavators and other machinery for fear...