Yes there are many studies both ways on this. I noted that most of the studies that recommended daily aspirin treatment were authored by doctors that are also paid consultants to the large pharmaceutical companies and even they admit that you would see no potential benefit until 6 years of daily use. Also it was not really my point.
My point was that plain old everyday items we all have contact with on a daily basis, such as aspirin are more deadly to us than those big scary guns.