It’s time for liberals to engage in the depopulation debate, says Dean Spears, a co-author of After the Spike.

The remnants of an ancient community face a new age of anxiety after decades of uneasy coexistence with the mullahs’ regime.

People who grew up during the Cold War, as I did, internalized this fear as children. We still tell our campfire tales about hiding under school desks at the sound of air-raid sirens. Such things ...