Federal law requires a person to report cash transactions of more than $10,000 by filing IRS Form 8300PDF, Report of Cash Payments Over $10,000 Received in a Trade or Business. https://www.irs.gov/newsroom/cash-payment-report-helps-gover...
See also https://www.fincen.gov/sites/default/files/shared/CTRPamphle... Federal law requires financial institutions to report currency (cash or coin) transactions over $10,000 conducted by, or on behalf of, one person, as well as multiple currency transactions that aggregate to be over $10,000 in a single day
And finally remember civil forfeiture implies carrying "large" amounts of cash risks police seizing the cash with very limited recourse.
So no, not DOA in the US, rather already existing in the US but in a more sly format
I have no problem reporting large cash transactions. I do have a problem keeping all my money in electronic accounts that can be vaporized by government fiat, hacking, bank insolvency, clerical error, EMP, etc.
What about organized crime? You have one of the, if not the worst crime rates in the developed world.
According to [1] Israel's crime rate is 105/135 (higher is worse). It's better than Norway and worse than China. USA, by comparison, is 56, which is worse than Ghana, Egypt and Lebanon (but better than Sweden and Iraq).
[1] - https://worldpopulationreview.com/country-rankings/crime-rat...