Even more tantalizing is that it was probably a domestic bribe he was tasked with. Traveling internationally with hundreds of kg of gold is not very reasonable and I'd assume they have access to resources in other countries as needed.
And we'll get all the answer, it'll just take 50 years, and then everything will probably make a lot more sense. Maybe even sooner if an administration finally gets the courage and brains to get rid of the CIA. So incompetently destructive to US interests, and an overall abhorrent organization.
I don't think it'd be difficult for the CIA to charter a cargo plane from somewhere in the USA without any questions being asked. They used to be very involved in the air freight trade. Guns don't move themselves!
> it was probably a domestic bribe
I did consider that for a minute but if it really was the CIA acting in any domestic capacity, I think they would have taken him down on some other pretext. Not that the CIA doesn't quietly do domestic spying, they just wouldn't let anything get to the media that might lead in that direction.
Traveling internationally with hundreds of pounds of gold wouldn't be that hard for a CIA senior official on "official" business. A diplomatic passport and access to the State Department or War Department's fleet of aircraft would get you pretty far.