[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2009/WORLD/asiapcf/10/01/samoa.earthquake/art.samoa1.cnn.jpg caption= "Red Cross workers walk past a boat last month that was uplifted by the tsunami at Pago Pago Harbor, American Samoa."]
When a tsunami hit American Samoa last month 34 people were killed and one victim is still missing. They were all struck by a killer wave with no warning. We decided to find out why there wasn't a warning system in place and what we uncovered is startling.
Records show U.S. taxpayers shelled out nearly $13 million in disaster preparedness grants to the tiny island in the south Pacific since 2003. Yet, there were no sirens, no warning system and 34 deaths when the tsunami hit.
U.S. Homeland Security investigators tracked the money. They say the cash was instead spent on leather furniture, plasma televisions and other luxuries.
Don't miss what else Drew Griffin uncovered in our exclusive 360° investigation tonight.
We're also following a shocking story outside San Francisco, where police say a girl was gang raped for two-and-a-half hours outside a high school homecoming dance. Investigators say as many as 15 people, all males, watched the assault and did nothing. They never called police. They never helped the victim.
The girl was discovered badly beaten after police got a call from someone who overheard people talking about the attack.
Educator Steve Perry will join us to talk about this disturbing case. He says if you haven's been to a school lately you should be afraid, very afraid. Perry warns there is a "twisted perception of what is acceptable behavior." He has some suggestions to change the environment. It is something everyone needs to hear.
Also on our radar tonight are the sweat lodge deaths in Arizona. We continue to stay on this story demanding answers.
How did three people die and nearly two dozen get sick from taking part in the ceremony? Tonight you'll hear from the family of Liz Neuman. She died of organ failure a week after participating in the new age ritual run by self-help guru James Arthur Ray.
Join us for these stories and much more starting at 10pm ET. See you then!
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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