Talking Past Each Other on Taiwan

If you acknowledge the risk of a nuclear exchange, that ought to settle the question of whether it makes sense to go to war for a non-ally.

There was a revealing debate over Taiwan on Intelligence Squared recently. The proposition to be debated was that "Taiwan is Indefensible.” Lyle Goldstein and Charles Glaser argued for the motion, and Elbridge Colby and Elizabeth Larus argued against it. Colby has previously made a version of his argument in an op-ed for The Wall Street Journal, and Gla…