During World War II, Germany had devised a plan to force the British fighter force to be spread thin in “standing patrols,” which would require planes in the air flying ready at all times. This process would have caused the hard-pressed British to waste precious high-octane fuel. But the Brits had a secret that monitored every move of the German bombers. Even when flying at night or emerging through cloud banks, German pilots were stunned to discover British aircraft waiting in position to attack. What the Luftwaffe had not realized was that their evil actions were being watched by an invisible and undetected force made practical by a top secret invention, the “cavity magnetron,” now known as radar. Even though the German pilots thought they were operating in secret, their every aerial move was made visible by an unseen force. Today, many people remain comfortable in sin thinking that their…