Hacker News stories for 6 PM on Friday May 31, 2013

0.507 Bioethicist says parents who don’t vaccinate should face liability comments

0.505 Google Compute Engine MPI Latency comments

0.186 Which Video Marketing Metrics Matter? Infographic comments

0.011 Build it with me: Bitcoin wallet for Mac comments

0.007 Show HN: Logos in Pure CSS comments