EES and ETIAS
It appears that EES (Entry/Exit System) for tracking all non-EU visitors' (like U.S. citizens) border crossings- replaces manual passport stamping with a digital record- went active this past October in some areas. They kind of already collect biometric data, etc. at many ports of entry. Will they now need to verify it at all "yellow roads" border crossings?
Implementation of ETIAS (European Travel Information and Authorization System) for all non-EU nationals, both those who need a visa and those who are visa-exempt, like U.S. citizens, (its a "visa-like" non-visa 
) has been delayed until the 4th qtr 2026 (Inshallah ).
Reports about EES vary from "no problem" to "what a mess" when computers go down, etc.
Has anyone experienced EES at a border crossing on a Tauck tour yet? I can't imagine what a mess implementation of ETIAS will be like, especially at CDG airport where transiting can often already be a horror show!!