the US dollar might be sliding in value but inflation in argentina hit something like 300% a few months ago so it's not really comparable. they love dollars.
also just to clarify, i haven't seen good information about how this works w/argentinian pesos, but the tripartite money laundry between china -> mexican cartels -> american consumers is extremely well documented. i've also seen some information on how this works in the european context w/the italian mafia and dubai cartels,
i have trouble believing that it doesn't work the same way in argentina.