SHOTLIST:

HANDOUT PHOTO

FILE: Date/Location Unknown

1. Still picture of Timothy Kudo in uniform

AP - AP CLIENTS ONLY

New York - February 6, 2013

2. SOUNDBITE: Timothy Kudo/Retired Marine captain (transcript below)

3. Wide shot of Kudo walking down street in New York

4. SOUNDBITE: Timothy Kudo/Retired Marine captain (transcript below)

AP - AP CLIENTS ONLY

Vienna, Virginia - January 30, 2013

5. Medium shot of Nash at computer

AP - AP CLIENTS ONLY

Helmand province, Afghanistan - November 15, 2012

6. Various file video of US Marines on foot patrol

AP - AP CLIENTS ONLY

Vienna, Virginia - January 30, 2013

7. SOUNDBITE: William Nash/Retired Navy psychiatrist (transcript below)

++ 4:3 VIDEO ++

AP - AP CLIENTS ONLY

February 2010/Afghanistan

8. Various file video of US troops in Afghanistan

HANDOUT PHOOT

FILE: Date/Location Unknown

9. Still picture of Kudo in uniform

AP - AP CLIENTS ONLY

New York - February 6, 2013

10. SOUNDBITE: Timothy Kudo/Retired Marine captain (transcript below)

HANDOUT PHOTO

File: Date/Location Unknown

11. Still picture of Nash in Iraq

++ NOTE: 4:3 VIDEO ++

AP - AP CLIENTS ONLY

File: Date/Location Unknown

12. Various file of US troops in Afghanistan

AP - AP CLIENTS ONLY

Vienna, Virginia - January 30, 2013

13. SOUNDBITE: William Nash/Retired Navy psychiatrist (transcript below)

14. Nash at computer

AP - AP CLIENTS ONLY

File - Date/location unknown

15. Various file video of US troops in Afghanistan

AP - AP CLIENTS ONLY

New York - February 6, 2013

16. Kudo walking up stairs and out of shot

VOICE-OVER SCRIPT:

TIMOTHY KUDO HAD NO ILLUSIONS ABOUT WHAT WOULD HAPPEN WHEN HE JOINED THE MARINES AND WENT TO IRAQ AND AFGHANISTAN.

SOUNDBITE: Timothy Kudo/Retired Marine captain

"You know as an infantry officer we were trained pretty extensively on how to take the fight to the enemy and we were trained to kill and to order men to kill."

BUT AFTER DOING JUST THAT, THERE WAS NO TRAINING FOR CIVILIAN LIFE, WHERE HE WALKS THE STREETS OF NEW YORK FEELING LIKE A KILLER.

SOUNDBITE: Timothy Kudo/Retired Marine captain

"And then when we came back and we all went our separate ways, it was something that we never heard about again. And it was something that we were left by ourselves to think about, and that's a very difficult thing, I think."

IT'S WHAT SOME EXPERTS LIKE RETIRED NAVY PSYCHIATRIST WILLIAM NASH CALL "MORAL INJURY" -- THE EMOTIONAL WOUNDS FROM HAVING DONE OR FAILED TO STOP SOMETHING THAT VIOLATES DEEPLY HELD VALUES

SOUNDBITE: William Nash/Retired Navy psychiatrist

"the aftermath of moral injury is shame, guilt, anger and a feeling of 'I can't trust myself anymore."

IT'S DIFFERENT FROM POST-TRAUMATIC STRESS, WHICH IS FEAR-BASED, WITH FLASHBACKS TO TERRIFYING, LIFE-THREATENING COMBAT EVENTS. MORAL INJURIES AFFECT THE CONSCIENCE.

KUDO'S REMORSE STEMS PARTLY FROM AN INCIDENT WHERE MARINES UNDER HIS COMMAND KILLED A PAIR OF AFGHAN TEENS THEY THOUGHT WERE INSURGENTS.

SOUNDBITE: Timothy Kudo/Retired Marine captain

"I can't forgive myself for it, I know that their families won't forgive me for it, and the people who can forgive me are dead, and nothing is going to change that either."

BUT NASH, WHO WAS IN CHARGE OF MARINE COMBAT STRESS PROGRAMS , SAYS FORGIVENESS IS THE KEY TO DEALING WITH A MORAL INJURY.

SOUNDBITE: William Nash/Retired Navy psychiatrist

"You can't unring the bell, you can't just whitewash it or pretend it didn't happen."

WHILE THE FOCUS FOR YEARS HAS BEEN ON PTSD TREATMENT, NASH IS HOPING OTHER RESEARCHERS WILL START CONCENTRATING ON TROOPS WITH MORAL INJURIES, AND FINDING WHAT HE CALLS PSYCHOLOGICAL FIRST AID TREATMENTS TO HELP EASE THEIR GUILT.

FOR THOSE SUFFERING NOW, WHAT'S LEFT IS TO LIVE WITH REGRET AND SIMPLY TRY TO MOVE ON.

SAGAR MEGHANI, ASSOCIATED PRESS, THE PENTAGON