Thanks to my friend Ed for pointing me to this coffee article on Live Science. I had read some of this before, but the article introduces some research I had not seen, regarding coffee's seeming benefits with respect to cancer and heart disease.
As a couple of readers have suggested in the comments section, most of these benefits would accrue only to the consumption of organic, black coffee. The fat and sugar bombs that are the vehicle for much of the coffee consumed these days would certainly have offsetting risks. And of course, conventional coffee grown with pesticides is not at all healthy for the planet or the farmers, and not much good for consumers, either.
Bottom line: Coffee still good; Dunkin' Donuts still bad.