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Citing reports by NPR and Colorado Public Radio, 12 senators want the Army to investigate the discharges of tens of thousands of troops with mental health disorders.

When Marine Cpl. Zach Stiles returned from Iraq, he couldn't sleep, hold down a job or pay rent. He and his father sat down with StoryCorps to talk, for the first time, about his life after the war.

When Army Capt. Stefanie Pelkey's husband returned from Iraq, "his light was gone," she says. Army Sgt. T.J. Hart says he barely survived the numbness that led Pelkey's husband away.

As the generation that served in World War II and Korea grows older, the demand on the Department of Veterans Affairs for end-of-life care is growing with them. Now, the VA is trying new ways to help.

Jon Meadows received multiple injuries during his deployments, including a traumatic brain injury. Now, with the help of his wife, Melissa, he's focusing on recovery.

The vast majority of people, including soldiers, with PTSD, depression or other mental illness are not violent. Psychiatrists doubt the latest shooting at Fort Hood could have been predicted.

In Killeen, Texas, another mass shooting had some asking, "Again?" The flags flew at half staff as the community began to pick up the pieces.

Veterans with "other than honorable" discharges lose benefits like the GI Bill for school or a VA home loan. But they also can't get VA health care and disability compensation, even for the PTSD that may have caused the bad discharge. Such veterans have a few avenues of appeal, but none is simple.

Since 2001, more than 100,000 troops have left the military with an other-than-honorable discharge. The "bad paper" puts benefits and medical care out of reach, even for those who served in combat. Which raises a simple question: What does America owe those who serve?

Last spring, the Colorado Springs Gazette investigated the connection between war wounds, military misconduct and other-than-honorable or bad conduct…