Hacker News stories for 3 PM on Tuesday Sep 24, 2013

0.874 How Copyright Made Mid-Century Books Vanish comments

0.847 Ways You’re Making Your Employees Less Productive comments

0.451 Why PR for Your Engineering Team is not Crazy Talk comments

0.182 Google Starts to clean up Youtube Comments comments

0.134 Empty F-16 jet tested by Boeing and US Air Force comments