It's a little complicated, but I actually lobby for an oil company. See, if pot-smoking were made legal, so would hemp=growing. Did you know the US is the world's biggest importer of hemp?
The US Government also holds a patent on medical cannabis:
http://www.patentstorm.us/patents/6630507.htmlExcerpt from your link.
Cannabinoids have been found to have antioxidant properties, unrelated to NMDA receptor antagonism. This new found property makes cannabinoids useful in the treatment and prophylaxis of wide variety of oxidation associated diseases, such as ischemic, age-related, inflammatory and autoimmune diseases. The cannabinoids are found to have particular application as neuroprotectants, for example in limiting neurological damage following ischemic insults, such as stroke and trauma, or in the treatment of neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease and HIV dementia.
How is this not a wonder drug..... [using the term "drug" loosely]