Forgive my ignorance of quantum physics, but would it be possible to use entanglement to send messages back in time? If not, why would entanglement work in onl

Forgive my ignorance of quantum physics, but would it be possible to use entanglement to send messages back in time? If not, why would entanglement work in only one direction (forwards)? There is a causality argument, but I don't why it would be impossible that reading a message from the future cannot alter that future. Just because a future universe occurred once doesn't mean that it has to occur again once particles have been entangled, does it? Aside from being very strange, would such a scenario violate any known laws of physics? There is this: http://en.wikipedia.org/wiki/No-communication_theorem http://en.wikipedia.org/wiki/No-communication_theorem, which, unfortunately, is beyond me.