http://www.coindesk.com/case-merging-mexicos-peso-block-chain-technology/A developing plan in Mexico to create a digital peso could demonstrate the potential of bitcoin technology to the rest of the world, if it’s successful.
I highlighted the bad part :
Peso Digital would be the digital version of the country’s fiat currency, using block chain technology. Instead of one block chain, three would back the digital peso, each to fulfill a different need.
It would be controlled by the Mexican central bank – making block chain technology legal technology – to strengthen the country’s democracy and transparency.