Case 1. I strongly believe that there has NOT been a lack of restraint or indeed common sense in this discussion, it is simply human nature to reason and find out what happened on board the four aircraft, so that we can sympathise with the victims and ensure that every precaution necessary is taken in the future ensuring that these horrific events do not occur again,thus technical speculation must ensue such an event.This is a tradgedy which has affected the world and people need to discuss every aspect of it in order to have a sense of closure and a time to grieve.