Some ideas on how it could work:
- Read through the connection data (phone,email etc) from key figures of the Bitcoin community to gain insider knowledge
- Infiltrate core development and replace Bitcoin key figures with NSA staff
- Discredit respected members of the community
- Kill people, if they don't corporate.
Are core devs discussing this possiblility of a large scale infiltration and how to avoid?
It would be easier for them to reverse engieer every address as there will be similarities between that and the rivate keys.
Alternatively, broardcasting transactions and bypassing the initial core requirements for sent transactions would also allow for them to control Bitcoin.
Whilst improbable there will always be a way for certain eople to take over the network and manipulate it in their favour.
What would be easier, to buy a billion Bitcoins and sell them on in stacks of 1 million at $1/Bitcoin deflating the market of Bitcoin and forcin people to withdraw from Bitcoin (they could also buy all the bitcoins mined and found at £500 each).