Hacker News on 4 April 2018

• Google Workers Urge C.E.O. To Pull Out of Pentagon A.I. Project
• Making the Touch Bar useful by abandoning Apple guidelines
• OpenSimpleLidar
• What Did Ancient Romans Do Without Toilet Paper?
• Facebook CEO says no plans to extend all of GDPR globally
• The Worst U.S. Maritime Disaster in Decades
• Book: Mathematics for Machine Learning
• A man who spent $100K to remove a lie from Google
• Don’t Fix Facebook, Replace It
• Netflix FlameScope