Hacker News stories for 4 PM on Thursday Aug 08, 2013

0.924 Exposing Patent Trolls comments

0.630 DC, Maryland: Speed Camera Firms Move To Hide Evidence comments

0.494 More patents in the service of open source comments

0.322 Cost Analysis: Trubrain Proprietary Nootropic Blend vs. Generic Equivalent comments

0.267 New Rust runtime turned on. What next? comments

0.258 Encrypted E-Mail Company Hushmail Spills to Feds (2007) comments

0.115 Ultrasonic Networking via Web Audio comments