Although there is no perfect security system, the multiple layers -- which can be routinely enhanced or modified -- provide an effective means to secure passengers, employees and facilities. The TSA report More Quotes by The TSA report More Quotes From The TSA report No single measure can provide broad-spectrum protection against risks or adversaries, therefore, risk-based, multi-layered security offers the greatest ability to mitigate risks through the application of flexible and unpredictable measures to protect commercial aviation. The TSA report us-news
