(Adds background) WASHINGTON, March 24 (Reuters) - U.S. President Barack Obama is expected to announce the results of his review of Afghanistan policy on Friday, a U.S. official said on Tuesday. The source declined to provide any details of the much-anticipated review, which has been looking for new ways to halt the worsening insurgency in Afghanistan. Obama has said the United States is not winning in Afghanistan and last month ordered the deployment of 17,000 extra U.S. troops to the country. He declined to comment on the results of the review on Tuesday. "I don't want to prejudge what is still a work in process," he told reporters. Nevertheless, senior administration officials have provided the outlines of possible policy adjustments. They have spoken out in favor of increasing the size of the Afghan security forces, improving cooperation between NATO nations and the Afghan government and increasing civilian assistance to build institutions and infrastructure. In an interview with CBS-TV's 60 Minutes program broadcast on Sunday evening, Obama said the U.S mission in Afghanistan should be "making sure that al Qaeda cannot attack the U.S. homeland and U.S. interests and our allies." "That's our number one priority," he said. "And in service of that priority there may be a whole host of things that we need to do. We may need to build up economic capacity in Afghanistan. We may need to improve our diplomatic efforts in Pakistan," Obama said. "What we can't do is think that just a military approach in Afghanistan is going to be able to solve our problems. So what we're looking for is a comprehensive strategy," he said. "And there's got to be an exit strategy," he added. "There's got to be a sense that this is not perpetual drift." The United States has some 38,000 troops in Afghanistan and other nations, mainly NATO allies, have deployed about another 30,000. (Reporting by Andrew Gray and Arshad Mohammed; Writing by Andrew Gray, editing by Philip Barbara)
Women cry during the funeral of Shabir Ahmad Malik, a Kashmiri Muslim soldier from the Indian army, in Dab, 35km (21 miles) north of Srinagar March 24, 2009. At least 19 ...