Originally Posted by
SATTSO
It can potentially be brought in at different airports. People involved do not need be on the same flight; they do not need to meet - one person can dump an item in a trash can for another to pick up in an hour or so later.
Of course, a terminal dump wouldn't protect against
that case, since people would be meeting at a connecting airport. But I think the point there is that if a plot is so complex that it requires multiple airports, the necessary coordination would have a much higher chance of being caught by law enforcement and intelligence.