A friend of mine showed this to me, she says it makes sense. I'll let you decide, maybe this is something we should be concerned about.
https://docs.google.com/Doc?docid=0AdaSMLZbPw-yZGZtbnJjZGNfMTRnbWJzOHJmeg&hl=en
https://docs.google.com/Doc?docid=0AdaSMLZbPw-yZGZtbnJjZGNfMTRnbWJzOHJmeg&hl=en