Hacker News on 7 May 2015

• U.S. NSA domestic phone spying program illegal: appeals court
• Facebook PathPicker
• NASA's Radar Found 4 Men Trapped in Rubble in Nepal by Their Heartbeats
• Tmux 2.0 released
• Why Lisp?
• Mysterious Planes Over Baltimore Spark Surveillance Suspicions
• Accepting payments is getting harder
• Join the Engineering Leisure Class
• Go crypto: bridging the performance gap
• GitHub and Jupyter IPython Notebooks