Hacker News on 21 December 2012

• What does randomness look like?
• xkcd: Instagram
• Verizon Is Blocking Google Wallet Anti-Competitively
• A $5 Lamp Powered Solely by Gravity
• IV: Don't Mind Our 2000 Shell Companies, That's Totally Normal
• Patio11 Wrote A Book On Conversion Optimization For Software Companies
• NASAs Cassini spacecraft has delivered a glorious view of Saturn...
• China listening in on Skype - Microsoft assumes you approve
• Rust 0.5 released
• “How Do TSA Employees Feel About Working For a Despised Agency?”