6. 59% of the 'Tuna' Americans Eat Is Not Tuna

Christopher Mim wrote an article on "59% of the 'Tuna' Americans Eat is not Tuna". 59 percent of fish labeled "tuna" at grocery stores and restaurants are actually mislabeled as some other fish. It was usually a fish called snapper, or an escolar. He supported his evidence by showing a bar graph of percentages of tuna that was mislabeled. He also let out a surprising fact that every single restaurant in Chicago, Austin, New York and Washington DC sampled sold mislabeled tuna.
This article was mostly in bullet-form and almost had no information except a few surprising discoveries of the reality of Tuna in the U.S. The things is, as readers, we can't tell if they are true facts or not. His statement has no credibility, no background proof to show the readers how he has come to this kind of information. Plus, without any sufficient evidence, it's hard to believe that every single sushi restaurants in these big towns like New York and Washington DC misused tuna. Also, a certain amount of people on the comments doubt his article. He did try to make it seem somewhat credible by posting a bargraph of the percentages, but the results of the data come out of nowhere which makes it more hard to believe. Overall, I think Mim had failed in delivering the importance or seriousness of mislabeled tunas sold in U.S.