Earlier quoted context omitted.
> I've got nothing to hide. Some retorts for people swayed by that argument: "Can we put a camera in your bathroom?" "Let's send your mom all your text messages." "Ain't nothin' in my pockets, but I'd rather you didn't check." "Shall we live-stream your next doctor's appointment?" "May I watch you enter your PIN at the ATM?" "How about you post your credit card number on reddit?" "Care to read your high-school diary…
I think the "nothing to hide" argument is made for a different reason. People are unafraid of the government knowing certain things because they believe it will not have any real repercussions for them. The NSA knowing your search history is no big deal (as long as you're not looking for anything illegal), but your church knowing your search history would absolutely be a big deal.
Until someone at or above the TSA decides they don't like you. And then they use your search history to blackmail you. Because lots of people search for things that wouldn't be comfortable being public. Or search for things that could easily be taken out of context. Especially when that out of context makes it seem like they might be planning something illegal
Heck, there's lots of times where people mention a term / name for something on the internet; and, even though that thing is benign, the _name/term_ for it is not. It's common for people to note that they're not going to search for that term to learn more about it, because it will look bad or the results will include things they don't want to see.