Cargo Bikes' Hidden Danger

As this video demonstrates, a longtail cargo bike has a hidden danger: poor backup visibility. Because a cargo bike is longer than a regular bike, there exists a "danger zone" behind their rear wheel where the rider's view is blocked. This video shows my attempts to develop a "backup camera" to alleviate this problem, with limited success. My camera is similar to cameras recently mandated by the National Highway Traffic Safety Administration for all light vehicles.