Hacker News on 21 January 2013

• Youth expelled from Montreal college after finding security flaw
• Tron Legacy (2010)
• Why was '~' chosen to represent the home directory?
• How one man escaped from a North Korean prison camp
• Programmer Interrupted
• What we discovered about InstallMonetizer
• Responsive Web Design – Advanced Lesson
• Implore HN: Celebrate and encourage young developers who post here
• Taking payments online in Europe in 2013
• The End of Ragequitting