Fast and Furious was a PR campaign for gun control.
The idea was to get hundreds of guns sold in the US to private individuals across the border in to Mexico and thereby in to the hands of Mexican criminals.
These guns illegally imported in to Mexico would then be used in crimes; specifically murders.
The guns would then be traced back to their point of sale in the US.
Then the PR campaign could begin to place onerous restrictions on the sale of small arms to private individuals all in the name of the innocent Mexican victims.
The UN treaty on small arms of course is a huge part of this plan.
That’s a great explanation.