Stephen Quayle™ is a nationally known radio host, photographer and author of a number of important books including Breathe No Evil, a primer for understanding bioterrorism, first published in 1996. Additionally he has authored:

Angel Wars - Humanity hangs in the balance, with secret, powerful forces aligned against it.
Giants - Master Builders of Prehistoric and Ancient Civilizations
LongWalkers - The Return of the Nephilim