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Related: Tech and gadgets

1. Headlines
   1. Sorry, Bieber! Rihanna is the most viewed artist on YouTube

      Bad news for the Biebs! On Tuesday, Rihanna passed the teenage heartthrob as the most viewed artist on YouTube.

   2. Battery tests show Apple's new MacBook Air beats competitors by a mile
   3. Google: 'We're not in cahoots with the NSA'
   4. Nintendo CEO: 'We are to blame' for poor Wii U sales
   5. Apple TV gets HBO Go, WatchESPN
   6. Microsoft offers hefty bounties to thwart hackers
   7. 3-D printing set to be this generation's 'Moon Shot' moment
2. Multimedia
   1. 
      Video
      How the PlayStation 4's hardware will bring a new realism to video games
   2. 
      Video
      Recalculating! GPS may lead you astray
   3. 
      Video
      30 years ago: Sally Ride’s journey into space
   4. 
      Video
      Don't pre-order the next-gen consoles quite yet...