Hacker News on 13 May 2019

• WhatsApp voice calls were used to inject spyware on phones
• Ask HN: What overlooked class of tools should a self-taught programmer look into
• CO2 in the atmosphere just exceeded 415ppm for the first time in human history
• Third-Biggest U.S. Coal Company Files for Bankruptcy
• Audit suggests Google favors a small number of major news outlets
• Amazon rolls out machines that pack orders and replace jobs
• Supreme Court rules antitrust lawsuit against Apple can proceed
• U.S. Farmers Are Being Bled by the Tractor Monopoly
• China is blocking all language editions of Wikipedia
• Stack Overflow lets Facebook track users across their sites