[cstejerean]

That's highly unlikely for most places in the world. What is often required is additional screening at or near the gate to enforce US specific rules (for example liquids in carry-ons). But that's usually not US staff and US equipment but rather extra staff enforcing US specific rules (the same way the laptop ban is currently enforced in Dubai for example).

[jaclaz]

Which are not "US Specific", liquids in carry-ons in containers larger than 100 ml are forbidden in Europe as well, this is UK as an example:

https://www.gov.uk/hand-luggage-restrictions