Members of the Pakistani navy march at the mausoleum of Muhammad Ali Jinnah, founder of Pakistan, to celebrate Independence Day in Karachi. Security was heavy in the capital Islamabad as the government braced for protests in addition to the ceremonies and celebrations. Fareed Khan/AP hide caption

itoggle caption Fareed Khan/AP

Workers prepare to distribute food Wednesday to civilians fleeing a Pakistan military operation against the Pakistani Taliban in North Waziristan, near the border with Afghanistan. Close to a half-million residents have fled their homes in recent days. A Majeed/AFP/Getty Images hide caption

itoggle caption A Majeed/AFP/Getty Images