I run a company in the area of Biometrics, which is the automated recognition of people using a something distinctive about physical identity. This could be a fingerprint, face or voice. In 1995 I finished my PdD in artificial intelligence, not many people had even heard of biometrics then. Now most phones and tablets have a face or fingerprint sensor built in. In addition to running a company, I have written a text book and founded a global not for profit called the Biometrics Institute. Biometrics is a really fascinating area and can provide a great introduction to many aspects of STEM, including statistics, biology, engineering and issues related to privacy.