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See how 3D printing is getting used to build homes and infrastructure, with real-world examples like 3D-printed homes and bridges. Look at how efficient gait recognition is for safety and where it is being used, together with surveillance and legal investigations. See how integrating biometrics into multi-factor authentication, like combining fingerprint scans with passwords, makes techniques Technology news more secure. Find out how voice recognition tech may help people with disabilities and have a glance at how properly it works.