However, my appraisal of "safety" markedly differs (like most people's appraisals of things) and I am more concerned with an overzealous government than a foreign attacker. I would trade my google search history for a bullet-proof vest if I was in a war-zone. However, I am not, and I don't think giving it to the government makes me safer.

However, people view the risk to the country and themselves differently and they also put markedly different values on their own privacy[0]. Also, this article should come as absolutely NO surprise to anyone in the HN community (or even anyone with internet).

edit: [0] which they use as a framework to assess how others value their own privacy AND the value they themselves put on others privacy.