Why would "the government" or "the banks" wnt to shut down bitcoin? Those thinking startegically about a possible loss of power due to bitcoin replacing fiat currences most likely do not see bitcoin as a real threat yet: They won't act unless bitcoin becomes a real problem for them (if they cared for every little project that showed some potential there'd be a thousand things they's have to fight at once).
My thoughts exactly. No significant powers care about bitcoin at the moment...