[tablespoon]

> Also entirely possible they used some stock parts and just didn't realize the LED was there.

I only think an amateur would make that kind of mistake. If it was from a hostile power with any kind of competence, I think they would have extensively tested it in simulated operational conditions. If they didn't notice the light when they initially built it, they would have probably noticed it during testing.

[devmor]

You overestimate the human ability to account for all conditions. For example, perhaps they did all of their testing in the middle of bright sunlight and simply did not see it?