1.Government and central bank should face up to the existence of Bitcoin,
take control of most bitcoins by using the computing power of supercomputers all over the country.
It is impossible to "take control of most bitcoins" using computing power alone.
Most bitcoins are in cold storage. A double spending attack would affect only a small fraction of bitcoins, or it would destroy the current block chain altogether if it persisted for long enough. In which case you are talking about outright destruction, not "facing up to existence".
Either these people failed to RTMF, or this is a bad translation, or it's a fake.