Hacker News on 18 April 2017

• Steve Ballmer serves up a data trove about government spending in the US
• USA Facts – Federal, state, and local data from government sources
• Facebook Announces React Fiber, a Rewrite of Its React Framework
• A customer reported an error in the map used by Flight Simulator
• Street Fighter II's AI Engine
• H-1B visas mainly go to Indian outsourcing firms
• Google Earth Redesigned
• The Art of Writing One-Sentence Product Descriptions
• Why Twitter Is Failing to Grow
• Pink Trombone: Speech Synthesis Simulation in JavaScript