If you scroll down to the end of the page you will see that Dr Jay Davidson is a chiropractor whose purpose is to release America from the shackles of medicine, so he has an anti-drug agenda.
As Sqad says few doctors advocate the use of Aspirin for primary prevention of heart disease in those without a history.
The Cochrane Database is always a good place to start; it gives the results of not just one trial, but the pooled data from many trials.
One such paper (2010) concluded that "daily aspirin reduced deaths from several common cancers across different study populations. Benefits increased with longer treatment duration"
Some cases of pancreatic cancer were included..it was mostly gastro-intestinal cancers which showed benefit.
http://www.crd.york.ac.uk/crdweb/ShowRecord.asp?LinkFrom=OAI&ID=12010007919
A similar more recent paper ..
http://www.crd.york.ac.uk/crdweb/ShowRecord.asp?LinkFrom=OAI&ID=12012027750
And the result of a preliminary study here..
http://www.aacr.org/home/public--media/aacr-in-the-news.aspx?d=2322
Of course any benefit has to be carefully weighed against the risk of bleeding.
So, not accurate at all is the short answer.