Hi to all,

Im new to bitcoin and Im observing this new economy grow up. Some aspects are very positive (decentralized, micro-payment, no fee) and some scary me (anonymous transaction). Im wandering if a civilized world can accept the development of a such tool or trying to destruct  it.

Imagine: I receive a transaction of 1 btc with the message attached : You have 48 hours to pay X btc to YYYYY or i kill your site/cat/son...

If Im scary about the message and I decide to invest time and money to find the sender, what can i do ? What the police can do ?

Best regard.