Hacker News on 30 May 2013

• Ubuntu's Bug #1 is fixed
• Glass
• Show HN: Free hi-resolution photos for your website. 10 new photos every 10 days
• Letter from Loretto - A Prison Letter from a CIA Whistleblower
• How Google Authorship decreased our traffic by 90%
• The secret button at pedestrian crossings
• Good Old Games: gog.com and the DRM-Free Revolution
• Let’s help Airbnb rebuild the bridge it just burned
• The Central Limit Theorem Visualized with D3
• Facebook’s New React JavaScript Library Tutorial Rewritten in AngularJS