Thank you CONF iture, yes, have seen this caution in various places both historical and recent. Also, I do recall coming across the OSV document more than a year ago and thought it prescient. The puzzle is, with so much information available prior to the accident, why did the accident occur at all? Getting information out to crews is always a challenge and doesn't happen in a few days or even weeks, and the sense of urgency is always contextual, so something perceived to not be an immediate threat receives less emphasis and dedication of what has become today, minimal resources, than other, "more immediate" concerns.