Creating an authority what block 'blacklisted' public addresses to send and receive trabsfers, if impossible to confirm the transfer, the value is vault =0. Haha, and no more hack, and no any country authoity to take anything.
Blocking the last 5000 bitcoin 'out' from mtgox, and if someone reclame the coins, just need to proove the origin(mining-buy).
If any transfer connected to familiar to employees to gox, then stay blocked, unlock=handling the private key to this coinauthority and they redistribute to the rightful owners.
With real money you can not make the same