Document date 20 January 1972AIDates: machine-written — generated by an AI model from the transcripts, and it can be wrong. The scan is the source; the transcript is machine-generated from it.
FBI 164-81, Vault Part 73 p. 380 (DB Cooper-31740), Letter, dated 20 Jan 1972, serial SE 164-81-SUBR (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-73/pages/380
The scan is the source; the transcript is machine-generated from it.
20 January 72.
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Dear Sir,
With reference to the enclosed news item,
which I understand was successfully terminated tonight
by the person being arrested.
My suggestion is this :-
Would it not be possible for your organization,
on receipt of a demand for money, have on hand
a substance which could be sprayed on the money –
neutralising the printing after a certain length of time –
for example 12 or 24 hours.
Even if the hijacker made a successful landing,
his profit would be considerably reduced, if not
eliminated. Also the possibility of passing the money
through a fence would be very remote.
It would not be necessary that the whole
surfaces be sprayed and the [guess: icons] could be held
in reserve at the larger cities, where these offences
are more prevalent.