Tonight at 11:00 pm: Veterans and prescription drugs

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Serious questions tonight about whether the US military is accidentally killing its own soldiers.

The concern involves an enemy here at home. Senior investigative reporter Bob Segall explores what's destroying the lives of thousands of veterans.

Tonight on the Nightbeat, 13 Investigates will show you what veterans have been dealing with -- why so many of them are dying -- and how the VA has known about the problem for years.