Pls there should be no such thing as "our enemy" in Bitcoin World pls. We should be smarter than politicians. Jeez
That's true, I don't agree with OP putting this here, he should have moved it to politics and society section. They cannot hack our blockchain because of decentralization, that I can guarantee but other forms of governmental manipulations well it's up in their hands.
Decentralization is one factor. There is possibility of backdoor hidden somewhere in the code.
I expect that Bitcoin's code was checked very thoroughly, but so they said about many unbreakable security projects before.
Most recent example is backdoor within CloudFlare anti DDOS protection service.