Anderson Cooper presents a special hour at 8 p.m. ET tonight on the myriad of challenges facing U.S. veterans when they return from battle.

Drew Griffin has been investigating charities accused of shameful deception, including allegations that they collect money with a promise of helping wounded veterans, but never deliver. These questionable charities target and exploit generous donors who think they're making a difference in the lives of service members. In tonight's show you'll see what happens when Drew confronts the president of one organization.

In Randi Kaye's report you'll meet a veteran who returned from Afghanistan, as his wife says, a shell of the man he once was. Mike Rioux's injuries make it impossible for him to have a job and support his family. One problem he never anticipated was how difficult it would be to get benefits from the Department of Veterans Affairs. Randi asks Veterans Affairs Assistant Secretary Tommy Sowers why the wait time for help can be months, even years.