Adam Gopnik reviews Voltaire in Exile by Ian Davidson, in the New Yorker:
It is still bracing, at a time when the extreme deference we pay to faith has made any attack on religious beliefs unacceptable, to hear Voltaire on Jesuits and Muslims alike—to hear him howl with indignation at the madness and malignance of religion—and to be reminded that that free-thinking, which inspired Twain and Mencken, has almost vanished from our world. (There is, after all, as much of Voltaire in American life as in French life. Benjamin Franklin went to him for a blessing, and got it.)
More here.