Ex-Trump aides tied to firm that tried to expand Russia’s spying efforts, by Kevin Dugan

"While other countries use similar 'iris-reading’ technology at customs checkpoints, Russia wanted to covertly install it throughout its subway system in order to track those walking through, including everyone from US diplomats to journalists and tourists, sources said. 'They had some people on a naughty list, a black list, and they wanted to track these people,' a former executive told The Post. 'It was more surveillance, hit a black-list database, send up an alert.'"