I agree.
That said, DO NO SEARCH in google, bing, yahoo or any other non-private browser, if your search is sensitive, even if your reason is completely innocuous.
For example, there was a story recently about a guy who dissolved his victims in acid. Curious, one might be tempted to go to google and type in "what kind of acid dissolves a body". No harm, no foul. A year later, some nutcase kills your neighbor or someone you know and dissolves them in acid. Guess who they are looking at now?
duckduckgo, IXquick(start page) or one of the other ones accessed through private browsing in your browser is the MINIMUM level of privacy for innocuous searches of sensitive subjects. Better yet, fire up the your TOR browser and search one of the private engines. Even better, is to get a VPN to a private out of the US/EU proxy and do all of the above.
If you can't do the above, simply never search anything that you wouldn't be willing to share with the world because, that is in effect what you are doing.
Don’t do the search and then buy the acid and talk to people about doing it.
This kid was on the radar. He flipped all the switches and they weren’t going to ignore it like the law did in every other shooting.