Assessments of the results of the attacks differ.
[11] Daniel Byman from the
Brookings Institution suggests that drone strikes may kill "10 or so civilians" for every militant killed.
[12] In contrast, the
New America Foundation has estimated that 80 percent of those killed in the attacks were militants.
[13] The Pakistani military has stated that most of those killed were hardcore Al-Qaeda and
Taliban militants.
[14] The
Bureau of Investigative Journalism based on extensive research found that at least 385 civilians were among the dead out of a total of between 1658 and 2597 killed.
[15] The CIA believes that the strikes conducted since May 2010 have killed over 600 militants and not caused any civilian fatalities.
[11]
According to secret cables leaked by
Wikileaks Pakistan's Army Chief
Ashfaq Parvez Kayani not only tacitly agreed to the drone flights but in 2008 requested Americans to increase them.
[16] However Pakistan's Interior Minister
Rehman Malik said "Drone missiles cause collateral damage. A few militants are killed, but the majority of victims are innocent citizens,"
[17] The strikes are often linked to
Anti-American sentiment in Pakistan and the growing questionability of the scope and extent of
CIA activities in Pakistan.