https://www.nationalgeographic.com/magazine/2018/02/surveillance-watching-you/
Yes; they CAN track THE Michael Cohen almost anywhere!
That’s a good point. Facial recognition technology could prove someone was in a certain place if they passed by the relevant cameras and if the data was then made available. If the FBI asked Germany or the Czech Republic whether a particular person had been there, would they know and would they give an answer? And even if they did, would any of these governments want to have that capability discussed in court?