"Google starting to kill off projects, would Go be on that list?"

Key difference here, unlike Reader, golang is fully open source. So even if they did (which is unlikely because it is good and used by Google itself), it could survive that and still thrive. I feel it's got enough critical momentum even at this point (and even more so in the future).

This is one of the main reasons why I believe in its future and feel passionate about it. They started off right by making it open source. I would have very mixed feelings if it were closed.