Probably you find yourself as am I, baffled by the recent spat of Twitter hate emanating from NNT towards @SamHarris, @sapinker and many others. The Steven Pinker spat goes back to a 2009 NYT book review by Pinker of Malcolm Gladwell’s “What the Dog Saw”, where Pinker beats up on Gladwell (see also). Taleb, featured in the book, by then a friend of Gladwell, comes to the rescue. Pinker is surprised, Taleb doubles down. From Maclean’s 12/10/2012:

So, when the renowned Canadian-born Harvard psychologist Steven Pinker penned a critical review in The New York Times of fellow Canadian Malcolm Gladwell’s novel, What the Dog Saw, Taleb rushed to Gladwell’s defense. “I got furious. I feel loyalty for someone who does something nice for you, when you are nobody.” Taleb wrote a scathing critique of Pinker’s research in The Better Angels of Our Nature: Why Violence has Declined. In his critique, titled “The Pinker problem,” Taleb claims Pinker’s book is riddled with errors in sampling and doesn’t “recognize the difference between rigorous empiricism and anecdotal statements.” Pinker responded with his own paper in which he writes, “Taleb shows no signs of having read Better Angels.”

NNT’s beef with Sam Harris is a little harder to track.

The debate Harris talks about, which seems to be the nexus of NNT’s beef with him, happened in 2009.
In a recent podcast, Sam Harris responded to NNT’s Tweets and shared some context.
Listen to the relevant section of the podcast

The entire debate, from La Ciudad de las Ideas 2009, full and unedited, can be found here. What follows are relevant clips from NNT and then Sam Harris.

The neuroscience papers Sam Harris refers to are:
Neural Correlates of Religious and Nonreligious Belief
Functional Neuroimaging of Belief, Disbelief, and Uncertainty (pdf)