The most provocative paragraph I read in 2013:
That's from the introduction to They Were Soldiers: How the Wounded Return from America's Wars--The Untold Story, by Ann Jones. I push back at a couple of the descriptions here, but overall I can't say that the author is wrong.
[It would be interesting to see if people would contribute to a collection of monthly "Most Provocative Paragraph" collections online somewhere, by the way.]