Quick question that my google-fu can't seem to find the answer to:
When did special forces start wearing hearing protection that had active noice cancelling and noice amplification?
This feels like a very recent thing, but then I think back to my stepdad buying a pair of headphones with active noice cancelling and amplification some time in the 90's, IIRC.
Sure, they were big and clunky, but they worked.
So, anyone know when special forces started using them and would they be something one might encounter in T2K?