pece_annotation_1473784523
erin_tuttleThe main argument is supported primarily through policy changes that show a changing approach to public health safety in the government and private organizations, with specific examples such as changes to the US government funding for biodefense research in the early twenty-first century. The paper also includes examples of changing scientific knowledge during the later twentieth century, referencing studies and reports that highlight the changing opinions of the scientific community. Finally, the authors divide the paper into several sections each outlining a specific type of problem and the practices devised as a solution, this format clarifies the main argument and aids the reader in understanding the authors views.