Singapore's Changi airport, which is widely touted as one of the best airports in the world, is testing use of facial recognition systems to find late or lost passengers in the airport so they don't delay their flight for everyone else onboard. From a report: Changi Airport is looking at how it can use the latest technologies to solve many problems - from cutting taxiing times on the runway to quicker predictions of flight arrivals. It comes as the island state embarks on a 'smart nation' initiative to utilize technology to improve lives, create economic opportunity and build community ties. However the proposed use of cameras mounted on lampposts that are linked to facial recognition software has raised privacy concerns. Steve Lee, Changi Airport Group's chief information officer, told Reuters that the airport's experiments are not from a "big brother" perspective but solve real problems. "We have lots of reports of lost passengers...so one possible use case we can think of is, we need to detect and find people who are on the flight. Of course, with permission from the airlines," said Lee.