You've doubtless heard of the dark web and may consider it to be a place to avoid because illegal activity takes place there, but there's good to be found, too. After all, The Onion Router was a project undertaken by the US Navy in the 1990s. In Short Circuits: Merchants of angst are predicting that GPS systems will fail on 6 April. They will do no such thing, but older GPS devices might be a bit confused on that day. What happens if a Windows update causes problems for your computer? Uninstalling the update is relatively easy, but you'll want to avoid having it be reinstalled. That's relatively easy, too. In Spare Parts (only on the website): IBM owns The Weather Company and says that system updates will lead to more accurate and faster reporting of conditions as well as more reliable forecasts. • Facial recognition is a big deal, but one British company is using machine learning to obscure faces in videos.