In the wake of White House counterterrorism advisor John Brennan’s speech on drone ethics and targeted killing, we talk to Yale Law School professor Stephen Carter, author of The Violence of Peace: America’s Wars in the Age of Obama.

"The administration says that the drone is the smallest amount of force that we could use. They say it's accurate and therefore it discriminates perfectly," observes Yale Law School professor Stephen Carter.

In this territorial dispute between India and Pakistan in what may be the world’s most militarized region, there are direct links between water availability, rising terrorism, and religious extremism among Hindus and Muslims.

“When we’re using missiles that kill but place no risk,” suggests Yale law professor Stephen Carter, “that means it’s easier to fight, which means it’s more likely we’ll fight.”

“The question in the eyes of many other Muslims,” according to Georgetown University Islamic studies professor John Esposito, is “are these people really Muslims or not?”

Some chaplains have seen and ministered to so many dying or badly wounded soldiers in Iraq and Afghanistan they themselves have become casualties.

The September 30 killing in Yemen of radical cleric Anwar al-Awlaki is reigniting an ethical debate: Should the US use armed drones outside combat zones? Watch excerpts from recent interviews on drones and the ethics of war.

Ten years after 9/11, the American public is “like an individual suffering from post-traumatic stress disorder,” writes ethicist Robin Lovin. “We are unable to return to the old world we thought we understood, but we cannot tolerate the noise and uncertainty of the new world, either.”

“Have we healed? Yes, healed with a hole. It’s never a complete healing, but at least there a willingness to write a new chapter of life,” says Rabbi Joseph Potasnik, a New York Fire Department chaplain.

“The people who are paying the costs, military families, veterans, civilians in Iraq, Afghanistan, and Pakistan—those people deserve to have their story told,” says Professor Catherine Lutz of Brown University.