I've had a few incidents in my classes that have illustrated the potential of the New Atheists' message to go down a dark path. If my students are picking up on this ideology, then others are too.
Now three young students have died at the hands of a "New Atheist." This group (including Harris, Dawkins, Maher...) is less about being atheistic, and more about being anti-theist. And, ironically, it's extremist in its insistence of demolishing religious groups.
Any hate-filled group, zealous in its intentions, is a concern. This group is no different.