The floodwaters from Hurricane Katrina may be long gone but the emotional effects are still being felt.
Experts say up to a third of those who lived through the storm and its aftermath may be suffering from post-traumatic stress disorder and cannot find treatment.
Symptoms include insomnia, nightmares and flashbacks.
Calls to suicide hotlines in New Orleans have doubled from pre-Katrina levels despite the fact the city's population is a third its former size.
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