According to the HN guidelines:
"Otherwise please use the original title, unless it is misleading or linkbait; don't editorialize."
New York 31.3% 18.5% −12.8 pp
Ottawa 19.7% 18.5% −1.2 pp
London 18.1% 32.1% +14.0 pp
Zeist 30.8% 30.8% 0 pp
Seems it is mostly because there was less trust in the USA, and added a little bit from Canada to make it less obvious.
https://en.wikipedia.org/wiki/American_Service-Members%27_Pr...
https://www.mediaite.com/media/tv/trump-suggests-he-can-use-...
The idea of repatriating it comes up from time to time, but the truth is that it's s logistical and diplomatic trouble with little positive outcomes.
> Before the deployment, the Dutch bank held 31.3% of its gold in New York and 19.7% in Ottawa.
> After the move, each country accounted for 18.5% of the Dutch gold reserve.
[1] France pulls last gold held in US (361 comments):
https://news.ycombinator.com/item?id=47658146