“To learn more about the prophecies of Matthew 24 and the profound hope that saturates them, read Trumpet editor in chief Gerald Flurry’s booklet Nuclear Armageddon Is ‘At the Door.’”
... for the low, low price of only $19.95.
Back in the 60s I picked up a flier/brochure in the church lobby entitled "Strike From Space" which predicted a Soviet attack upon the U.S. from satellites in orbit by a certain date, and said we must remember to pray that it not happen. And, of course, donate (to whom, I forget). Looks like the prayers and donations worked!
Actually it’s entirely free, and it’s a pretty powerful read: https://www.thetrumpet.com/literature/books_and_booklets/2913