“In the wake of President Obama’s apology for the killing of two Western hostages in a drone assassination in Pakistan, people might be wondering if it will be possible for surviving family members to recover in a legal action against the assassins for the wrongful death of their loved ones. The answer is unequivocally no. The reason is that long ago, the judicial branch of the federal government, acquiescing to the overwhelming power of the national-security branch of the government, decided to erect a wall of immunity around CIA assassinations. Moreover, the federal courts made it clear that the national-security branch was the final determiner of what constitutes ‘national security.'”
http://fff.org/2015/04/27/judicial-immunity-assassins/