Hacker News on 2 December 2016

• Crypto 101 – Introductory course on cryptography
• Uber Now Tracks Passengers’ Locations Even After They’re Dropped Off
• Htop explained
• I Dialed a Wrong Number and Stumbled into International Phone Fraud
• Canadian journalist's detention at US border raises press freedom alarms
• Jq – Work with JSON on the command line
• One Dollar Glasses – Help for 150M people
• Parkinson’s disease ‘may start in gut’
• Amazon States Language – A JSON-based language to describe state machines
• Redis 4.0 RC1 is out