Explain how Technology improves TSA process.

The topic is about introducing the TSA screening process and improving the process using the Lean Six-sigma method. Please include: The importance of improving TSA screening process. The current situation, problems it is facing. Introduction of the process. And the history of it. The implementation of biometric technology (like fingerprint reader, etc.), how it improves TSA process, mention a little about six-sigma method and how to implement it.