A federal appeals court ordered the U.S. Department of Justice to turn over key portions of a memorandum justifying the government's targeted killing of people linked to terrorism, including Americans.

In a case pitting executive power against the public's right to know what its government does, the 2nd U.S. Circuit Court of Appeals reversed a lower court ruling preserving the secrecy of the legal rationale for the killings, such as the death of U.S. citizen Anwar al-Awlaki in a 2011 drone strike in Yemen.

Ruling for the New York Times, a unanimous three-judge panel said the government waived its right to secrecy by making repeated public statements justifying targeted killings.