FILE - In this Friday, April 27, 2012, file photo, Officers of Pakistani law enforcing agency escort an alleged criminal during a crackdown operation against criminals in Karachi's town

 

              FILE - In this Friday, April 27, 2012, file photo, Officers of Pakistani law enforcing agency escort an alleged criminal during a crackdown operation against criminals in Karachi
FILE - In this Friday, April 27, 2012, file photo, Officers of Pakistani law enforcing agency escort an alleged criminal during a crackdown operation against criminals in Karachi's town of Lyari, Pakistan. Over 2,000 people were murdered in Pakistan's largest city last year, but the shooting death of 20-year-old Shahzeb Khan in one of Karachi's most upscale neighborhoods sparked an unusual outcry and highlighted a growing trend of citizens using social media to hold the country's rich and powerful to account. (AP Photo/Shakil Adil, File)