[ericd]

Did a quick search, didn’t see confirmation that they’re blind/that all radars had been knocked out. Was asking whether others who know more about this topic than me would confirm.

[Ms-J]

You did a reasonable check in my opinion. Perhaps if you had said that you already did search I wouldn't have written the last part.

Also if I had an answer to your question I would say it. Hope you are able to find the answer.