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• Feature

  Should a robot decide when to kill?

  Robots are being built for war, and humans will have to decide what they're capable of, how they're controlled, and if we really want them on the battlefield. We spoke with ethicists and engineers about the robot's autonomous future, and just how dangerous it might be.

• Report

  Spy games: behind Russia's massive Olympic surveillance program

  With concerns of terrori** abound, Russia has set up a blanket of surveillance around the Sochi Olympics that's so capable one expert is calling it "PRISM on steroids." We took a look at everything Russia is doing to prepare for the games, and whether it's enough for safety or far more than necessary.

• Review

  Pebble Steel review: business class

  Pebble's new **artwatch doesn't look much like a **artwatch. And that's a very, very good thing. Pebble has finally taken the **artwatch from techy to tasteful — now it just needs to make sure it makes the best one there can be.

• Report

  Oculus Rift at Sundance: games are just the beginning

  We've already seen what Oculus' virtual reality headset can do for games, but at Sundance, Oculus is starting to show how the Rift might be able to change movies, music, and just about any other type of art too.

• Report

  The Ryno one-wheeled motorcycle is a 'Dragon Ball' fantasy brought to life

  The Ryno is a self-balancing electric unicycle ripped straight from the lore of Dragon Ball. It may not be the most convenient way to get around, but it's certainly among the most fun.

• Review

  Sony Xperia Z1 Compact review: when **aller is better

  The best Android phones have always been among the biggest, but Sony may have finally changed the story. The Z1 Compact takes everything great about its bigger sibling and puts it in a **aller — but just as stylish — device. Could this be the phone to make a name for **all Android handsets?

• Report

  Will connected cars cause more accidents?

  Hooking our cars up to the web could make them a whole lot **arter, but only if all their new features don't distract us from driving. Now automakers are trying to figure out what the perfect connected car looks like, and how it can augment driving without getting in the way.

• Report

  The new retro: how Motorola brought wood back, literally

  Wood used to be everywhere in c***umer electronics, but with the switch to mass production came the switch away to plastic and metal. Motorola's wood-backed Moto X is a bet that wood can be big again — but actually making and shaping those backs turned out to be much harder than Motorola expected.

• Report

  When an Uber driver kills someone, who is resp***ible?

  Taxi-hailing apps and ride-sharing services are still up and coming, and laws and regulati*** will have to come up with them. Now Uber is being put to the test as a lawsuit pushes for it to be held accountable for a contract employee who struck and killed a child between fares.

• Report

  Counting minutes with Durr, the watch without a face

  Rather than telling the exact time, the Durr watch lets you know when every five minutes has passed with a brief buzz, quietly informing you that the day is toiling away. We spent a month wearing one to see if it would increase productivity or irritability.