This leads him to a controversial conclusion: that the saturated fat in butter, cheese and meats does not contribute to the clogging of arteries — and in fact is beneficial in moderate amounts in the context of a healthy diet

Nytimes article on transfat, saturated fat and all

More on the researcher, Fred Kummerow

Chicago tribune article

http://www.mensjournal.com/magazine/60-years-fighting-trans-fats-20140210

http://hereandnow.wbur.org/2014/05/12/trans-fats-scientist (http://archive.is/yRioE)

UPDATE:
Fred Kummerow is now 100 years old.

https://www.washingtonpost.com/news/to-your-health/wp/2015/06/16/the-100-year-old-scientist-who-pushed-the-fda-to-ban-artificial-trans-fat/

http://wphna.org/wp-content/uploads/2015/01/WN-2015-06-01-02-72-78-Idea-Fred-Kummerow-My-diet-JF.pdf

2nd update:

Fred Kummerow is 101 years old.

https://www.washingtonpost.com/news/speaking-of-science/wp/2015/09/29/all-this-scientist-wants-for-his-101st-birthday-is-funding-for-his-research-lab/

http://www.dailyillini.com/article/2015/10/fred-kummerow-tackles-alzheimers-disease

Additional resources:

http://www.theatlantic.com/health/archive/2015/11/frozen-turkeys-trans-fat-and-heart-disease/417252/

https://www.washingtonpost.com/news/wonk/wp/2015/09/23/its-time-to-end-the-tyranny-of-olive-oil/