GM and Deaths of Indian Farmers

There is quite a heated debate, kicked off to a degree by the Prince of Wales, concerning whether GM technology has been responsible for a spate of suicides by subsistence farmers in India (http://www.mailonsunday.co.uk/news/worldnews/article-1082559/The-GM-genocide-Thousands-Indian-farmers-committing-suicide-using-genetically-modified-crops.html). The impression may have developed in some quarters that the GM crops are directly causing suicides in their handlers but what seems more likely is that it has been linked to financial problems (affecting most of the world at present) in people often operating at the margins of viability. The possibility exists that the farmer 'victims' may have had a too optimistic view of adopting the GM varieties (this might have involved 'over-selling' of the benefits) or simply to have been too 'close to the edge' to make the leap at this time (the GM seeds are relatively expensive and often, because of environmental concerns, have to be purchased anew each season). It would be interesting to have data on farmer suicides in individuals with similar levels of debt who were growing only traditional crops. Even if that were the case, disappointment of hopes in individuals 'taking a punt' might be a factor.