Official : International Security Assistance Force troops respond to all reports by deploying surveillance assets , usually helicopters and drones , but they often can not find evidence of structural damage or the craters consistent with the villagers ' accounts of sustained artillery and rocket bombardments , the official explained . Haqqani network has increased infiltration into Afghanistan from Pakistan . Haqqani fighters are blamed for killing more than 1,000 coalition and Afghan forces . Comment:
Official : Haqqani network has increased infiltration into Afghanistan from Pakistan . Haqqani fighters are blamed for killing more than 1,000 coalition and Afghan forces . Comment: