allegations of bitcoin being used for untraceable money laundering [LWN.net]

allegations of bitcoin being used for untraceable money laundering

Posted Jan 17, 2018 23:19 UTC (Wed) by nybble41 (subscriber, #55106)
In reply to: allegations of bitcoin being used for untraceable money laundering by karkhaz
Parent article: Welcome to 2018

> Gold is totally opaque to x-rays, which is very unusual, so it appears completely black on airport scanners.

Solid gold, sure. But what about a wad of gold thread, or a gold-based aerogel, or thin perforated plates? One of gold's useful properties is the wide range of shapes it can be formed into, and at least some of those shapes should allow some x-rays through—perhaps enough to make it look less suspicious on the scanner.

allegations of bitcoin being used for untraceable money laundering

Posted Jan 18, 2018 1:07 UTC (Thu) by karkhaz (subscriber, #99844) [Link] (2 responses)

Which brings us very neatly to the other witty anecdote about mischief with Nobel Prizes: György de Hevesy dissolved a pair of Nobel Prize medals into a flask of aqua regia so that they wouldn't be stolen by the Nazis, and then precipitated the gold out of the solution after the War so that the Nobel committee could re-cast the medals.

https://en.wikipedia.org/wiki/George_de_Hevesy#World_War_...

I suppose you could try similar thing if you could find a shampoo bottle or some other inconspicuous container, that would not itself be dissolved by aqua regia---as long as you remember not to bathe in it after you land.

allegations of bitcoin being used for untraceable money laundering

Posted Jan 18, 2018 1:11 UTC (Thu) by sfeam (subscriber, #2841) [Link]

It would still be opaque to X-rays

allegations of bitcoin being used for untraceable money laundering

Posted Jan 18, 2018 2:17 UTC (Thu) by anselm (subscriber, #2796) [Link]

This would probably fall foul of the ban on large amounts of liquids that is in force for hand luggage. That is, if you disregard the fact that aqua regia is bright orange in colour and emits fumes, which would make it very conspicuous anywhere outside of a chemistry lab (you could probably put an Irn-Bru label on the bottle to make the colour believable but you should make sure no Scots get near – they might drink from it).

No airline will let you take dangerous chemicals on board, anyway. And it's not really good for the gold, either.