Originally Posted by
Fredrik74
CBP and TSA are both part of DHS.
Yes, but they are different "agencies" under the same "department".
Originally Posted by
WillCAD
Aren't those functions handled by completely separate federal agencies, i.e. CBP vs TSA? Or am I misinterpreting something due to my lack of knowledge on international travel?
Yes. CBP is distinct from TSA/CATSA -- even at Canadian airports with US CBP PreClearance.