I have a hard time explaining it. I know many very pro-gun people who constantly think the government is trying to take their guns but who don't have a problem with spying. My father is one of them.

One of the only things I can see is the propaganda has worked. They think spying is only to catch online child abusers and terrorist, and they know they aren't one of those so they have nothing to worry about. The spying is also much harder to grasp. Taking someone's gun is a very easy think to understand. Even a toddler can understand someone taking something from them. In comparison, spying, especially the really large scale stuff, is much harder to understand.

But besides for that, I don't really know why there is such a divide between the reactions.