Hacker News on 24 May 2014

• Fira Sans: a Free, Open Source Typeface Commissioned by Mozilla
• Responding to the Explosion of Student Interest in Computer Science [pdf]
• From Gmail to Fastmail
• Tehran tracked, captured, studied, copied RQ-170
• Data mining Reddit posts reveals how to ask for a favor and get it
• A Diamond Market No Longer Controlled By De Beers
• Trillions of plastic pieces found in Arctic ice
• How to start and scale a full stack startup
• Tail Calls, Optimization, and ES6
• One reason I dread Google doc shares