I intentionally chose a subject title to grab ones attention and I did this because I am very keen to hear opinions from as wide a variety of people as possible. 

If a government such as the United States government chose to kill Bitcoin would they not simply assign funds for a black project which would see the development of industrial sized bitcoin mining farms so they could take control of the network to kill it?

How much money would this government (or a few people within) need to spend in order to achieve this and what might be their motivation?

ActiveMining and others are developing next generation technology which will see the continued exponential growth in network hash rate, however the development funds involved are surely drops in the ocean compared to the sums available to the G8.