(Adds reaction, background, more from the ruling)
By Will Dunham
WASHINGTON, April 4 (Reuters) - A federal judge on Friday dismissed a lawsuit filed against the U.S. government by the families of three American citizens killed by U.S. drones in Yemen, saying senior officials cannot be held personally responsible for money damages for the act of conducting war.
The families of the three - including Anwar al-Awlaki, a New Mexico-born militant Muslim cleric who had joined al Qaeda's Yemen affiliate, and his teenage son - sued over their 2011 deaths in U.S. drone strikes, arguing that the killings were illegal.
Judge Rosemary Collyer of the U.S. District Court in Washington threw out the case, which had named as defendants former defense secretary and CIA chief Leon Panetta, former senior military commander and CIA chief David Petraeus and two other top military commanders.
"The question presented is whether federal officials can be held personally liable for their roles in drone strikes abroad that target and kill U.S. citizens," Collyer said in her opinion. "The question raises fundamental issues regarding constitutional principles, and it is not easy to answer."
But the judge said she would grant the government's motion to dismiss the case.
Collyer said that the officials named as defendants "must be trusted and expected to act in accordance with the U.S. Constitution when they intentionally target a U.S. citizen abroad at the direction of the president and with the concurrence of Congress. They cannot be held personally responsible in monetary damages for conducting war."
Awlaki's U.S.-born son, Abdulrahman al-Awlaki, was 16 years old when he was killed. Also killed was Samir Khan, a naturalized U.S. citizen who had moved to Yemen in 2009 and worked on Inspire, an English-language al Qaeda magazine.
The American Civil Liberties Union and the Center for Constitutional Rights, both based in New York, represented the families. They had argued that in killing American citizens, the government had violated fundamental rights under the U.S. Constitution to due process and to be free from unreasonable seizure.
'TRAVESTY OF JUSTICE'
"This is a deeply troubling decision that treats the government's allegations as proof while refusing to allow those allegations to be tested in court," ACLU lawyer Hina Shamsi said. "The court's view that it cannot provide a remedy for extrajudicial killings when the government claims to be at war, even far from any battlefield, is profoundly at odds with the Constitution."
Center for Constitutional Rights lawyer Maria LaHood said the judge "effectively convicted" Anwar al-Awlaki "posthumously based solely on the government's say-so." LaHood said the judge also found that the constitutional rights of the son and of Khan "weren't violated because the government didn't target them."
"It seems there's no remedy if the government intended to kill you, and no remedy if it didn't. This decision is a true travesty of justice for our constitutional democracy, and for all victims of the U.S. government's unlawful killings," LaHood added.
Collyer ruled that the families did not have a claim under the Constitution's Fourth Amendment guarantee against unreasonable seizures because the government did not seize or restrain the three who were killed.
"Unmanned drones are functionally incapable of 'seizing' a person; they are designed to kill, not capture," she wrote.
Collyer also wrote that the families had presented a plausible claim that the government violated Awlaki's due process rights. "Nonetheless, the court finds no available remedy under U.S. law for this claim," the judge wrote.
"In this delicate area of war making, national security, and foreign relations, the judiciary has an exceedingly limited role," Collyer said.
Allowing claims against individual federal officials in this case "would impermissibly draw the court into the heart of executive and military planning and deliberation," she wrote.
It would "require the court to examine national security policy and the military chain of command as well as operational combat decisions," she said.
Nasser al-Awlaki, father of Anwar al-Awlaki, said in a statement he was disappointed in the American justice system and "like any parent or grandparent would, I want answers from the government when it decides to take life, but all I have got so far is secrecy and a refusal even to explain."
Drone attacks have killed several suspected figures in al Qaeda's Yemen-based affiliate including Awlaki, who is accused of orchestrating plots to bomb a Detroit-bound airliner in 2009 and U.S. cargo planes in 2010.
The United States has faced international criticism for its use of drones to attack militants in places such as Pakistan and Yemen. A U.N. human rights watchdog last month called on the Obama administration to limit its use of drones targeting suspected al Qaeda and Taliban militants.
President Barack Obama's administration increased the number of drone strikes after he took office in 2009 but attacks have dropped off in the past year. The United States has come under pressure from critics to rein in the missile strikes and do more to protect civilians. (Additional reporting by Dena Aubin in New York; Editing by Bernard Orr and Mohammad Zargham)