After all the events over the years and the recent ones we are more geared up to high security now than before and for the most part the slightest flaw in security are followed up, too many people have been lost over the years but do you suppose that with regard to most of past events as with JFK, Bobby or the John Lennon shooting lax security and old fashioned ignorance and niavety on all sides played a part. Was it something just bound to happen as with the Pope etc. although he did survive it.