it is not possible
there is no way to confiscate such funds and if there is an attempt, the numerous other ways to transmit funds internationally will pick up the slack
“there is no way to confiscate such funds and if there is an attempt, the numerous other ways to transmit funds internationally will pick up the slack.”
It’s not confiscation. It’s a fee.
> “ ... the numerous other ways to transmit funds internationally will pick up the slack”
Treasury has a means to freeze 100% of monetary electronic transfers.
Physically smuggling is possible but not easy through airport scanners.