again this crap, the money needed to set up a mining operation that could overwhelm 51% of the network at this stage would be best used with that same equipment to secure the network instead, and earn the normal reward from the mining activity
would be more feasible for chinese to do this, because they are already at roi stage
You don't understand, the 51% attack is to destroy the infrastructure of bitcoin in order to save the established banking system in the U.S. and worldwide.
they care more about profit than anything else, and also i doubt that any single governments have the fuds necessare to develop an attack when bitcoin will be full adopted
right now you already need something like half billion to do such thing imagines when bitcoin will be reach mainstream status