[Domestic Church]

"though why a NEST team couldn't find it I have no idea...."

If it was enclosed in lead lining somehow that would make it harder to find and if that was placed deep inside by the mechanics and not in the cargo area or seating areas it would make it difficult too. The person trying to do this probably would try and make it look like an integral part somehow... maybe even in plumbing....false bottom of a sink etc.

[FairOpinion]

"The person trying to do this probably would try and make it look like an integral part somehow... maybe even in plumbing....false bottom of a sink etc."

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I was having the same thoughts.