John Law advises keeping your bitcoin safe, ponders bitcoin funding for political parties and recommends drinking wine (responsibly).
Should bitcoin transactions be marked to prove they didn't come from criminals? Should identities behind bitcoin addresses be verified?
We look at the recent scams and hacks that have caused people to lose a lot of bitcoins.
Czech Republic-based bitcoin exchange Bitcash.cz has been hacked and up to 4,000 customers' wallets have been emptied.
Chinese investors taste the darker side of bitcoin as a trading platform shuts down and $4.1m goes missing.
Approximately $1.2m worth of bitcoin have been stolen from a wallet service intended to be high-security.