Yes, there is a case involving crypto currency, but I will keep my remarks general, so as not to comment on a particular case.
Currently, transactions are made using bitcoin, but there has to be another way for the parties to communicate, other than bitcoin. To traffic in drugs, for instance, you can use bitcoin, but bitcoin alone won't cut it.
There is cash as well. There was a question earlier in the previous session about cash. Cash is a huge amount. Mr. Chun had $600,000.