Stable Coins - What's the Biggest Challenge?

A number of central banks are starting to work on central andigal coins that have a similar quality, in some ways, to stable coins. We're even discussn potential petop stable coin movement with the next day fed batch process as an option. The block chain can record history forever on every element ever moved through. So think about those abilities and long term impact to programs like bank secrecy act and and a money laundring.