I'm not sure how I missed it in the proofing stages, but I did notice it as soon as the printed copy arrived in my mailbox. A number of readers caught it as well and asked about it.
Magnetism only affects charged-particle radiation, which is also deadly.
Earth's atmosphere, not its magnetic field, protects Earth life from x-ray radiation. The fact that Earth has both types of shielding actually strengthens the case for divine design. References 10-14 were inadvertently dropped from the list on p. 3. Ciufolini, et al, p. 2102. A translucent atmosphere, unlike an opaque one, allows light to pass through.