Yeah. No kidding.
It was easy to go with the flow and assume that due to the current 'threats' from Iran, that this was just another 'exploration attempt'.
Assuming all the info you have given is true, I think the average person could envision how this was just ignorance gone wrong. It still doesn't remove the possibility that our enemy would be smart enough to send out some willing dupes/trained foreign agents to get the job done.
If it was due to ignorance, then it's a pity someone had to die for it.
Indeed. Cf. Ocean Twp. boy killed in sand tunnel collapse identified. As a grandfather, this sort of thing plagues my mind. Danger lurks everywhere.