The Militarisation of Space

I watched an interesting documentary today called the High Frontier. It was about the space industry in the US and Europe. It was kind of frightening actually. The focus was on satellites and weaponry designed to be fired from and at satellites. The prospect of the Chinese or Russians being able to destroy a US satellite is worrying. It also touched on the boom of "space entrepreneurs" finding ways of extracting resources from meteors and the moon. Space after all possesses an abundance of resources. Of course, there isn't any international legislation outlawing any of this. It did mention of the UN attempting to pass legislation, only to be vetoed by the US. An indication that the US has every intention of developing space weaponry and extracting resources from space. All this raises an interesting possibility. Whichever super power gains supremacy over space has exclusive access to the abundance of resources available out there. This begs the question: what will be prepared to do in order to achieve this? I know this might seem far in the future, but it bloody scares me.