> If your search phrases include things like "how to make a bomb", you're probably going to be on a database somewhere. There have been numerous serious court cases (e.g. murder trials) where the prosecution have presented evidence that the accused's search history included phrases like "how to dispose of a body" or "how to poison someone". In other cases, jurors have been dismissed for using Google to research the background to the case they are serving on. I wonder where the information about these searches came from

Google tracks it.