Comparison of Corn and Soybean yields, including the effects of herbicides when used on crop. 

This is just an abstract but it has a link to the full file. It describes how atrazine, a common herbicide for corn and soybeans, can be present in cattle, therefore presenting itself in beef. 

An article describing the tolerance of Kentucky plants to herbicides. 

This is just an abstract about a weed common in Kentucky and how it is growing immune to a common ingredient in herbicides called glyphosphate.

This is an article explaining the history of sonic weaponry. It also gives a fair amount of detail about the pros and cons if sonic weaponry became common and the ethics of producing such a weapon.