@StefanDGeorge
"Regulator": I cannot stop money laundering, but I can easily arrest an engineer who have share his knowledge and creativity with the world. So, let's just pretend the problem is solved for now, such genius move.
1/ Today's arrest of a developer for writing privacy-preserving software reminds me of the US government's criminal investigations against PGP developer Zimmermann for "munitions export without a license". Cryptosystems using keys >40 bits were considered munitions.