Autor: Amir Taaki
Fecha:
A: System undo crew
Asunto: [unSYSTEM] Sending private keys through post is illegal says FINCEN
http://www.wired.com/wiredenterprise/2013/12/casascius/
if your business is sending private keys with a metal case around them,
then you need a license because you are engaging in money transmission.