The revelations from RTE are all very interesting but the number one question that remains is 'Why did the island not appear as a contact on the radar?' Everything else merely amounts to contributory and aggravating factors. It's all about the radar. How many radar approaches were individual ICG pilots required to conduct per quarter?
There were some very interesting posts a few hundred pages back about what the screen might have looked like with a waypoint symbol overlaid on the radar picture.