Top CNET news stories of the week

This daily digest of CNET tech news is a hand-picked list of some of the biggest tech stories of the day. Get all the latest tech news here: http://www.cnet.com/news
  1. It costs $5M to keep Zuckerberg safe, and 4 more tidbits
    Facebook reported blockbuster revenue and profits. But that's not all we found out about the company. http://cnet.co/1NDYQ9f
  2. Samsung's VR future includes Star Trek holodecks, no wires
    Think virtual worlds, software that can track the movement of your hands and the ability to "touch" virtual items. http://cnet.co/1VXORyU
  3. Apple sales drop as iPhone shipments decline for first time
    CEO Tim Cook says the company faced "macroeconomic headwinds," which is code for having a hard time persuading people to buy iPhones, iPads and Macs. http://cnet.co/26sya1t
  4. 30 years after Chernobyl, drones take you on a VR tour
    The abandoned city of Pripyat in northern Ukraine is shrouded in layers of radioactive dust and remains dangerous today. However, you can visit in virtual reality. http://cnet.co/1SBUZqf
  5. Google predicts the future: Go big on artificial intelligence
    In his first letter to shareholders, Google CEO Sundar Pichai says the next wave of computing is all about machine learning. And a computer that can beat you at a 2,500-year-old board game. http://cnet.co/1TaL1vh