The United States has said it would nearly double its military forces in earthquake relief efforts in Pakistan to 1,000 as Washington steps up aid to its "war on terror" ally reeling from the deadly disaster. The higher troop levels will come as Washington takes on bigger responsibilities in reconstruction and medical aid, including the setting up of two mobile hospitals with facilities to perform major surgeries, military officials said. Rear Admiral Michael LeFever, the Islamabad-based director of the US Disaster Assistance, said via audio feed in the Pentagon that "there would probably in the vicinity of over 1,000 US...