A recent New York Times essay by David Brooks, "The Dissenters Trying to Save Evangelicalism From Itself," kicked up quite a stir. Possibly missed in the brouhaha was an unusually detailed plan of action for saving evangelicalism, provided by none other than legendary Mere Fidelity guest (and honorary host) Tim Keller. So we invited him back on to talk about it — all of it: the Christian Mind project, the "second-generation" problem, the notion of "diagonalizing," and much, much more. Full show notes at www.merefidelity.com.