Are LED headlights ethical?

[MikeInNH]

@shadowfax

Sunglasses are a different story, because non-prescription ones that aren’t safety glasses are often a much cheaper plastic which does not block UV.

Before I needed prescription glasses I bought regular sunglasses. From what I found then was MOST blocked UV. Maybe the ones you’d buy at WalMart didn’t. But any decent sunglasses these days (and 25 years ago) all blocked UV. I even have ski goggles that block UV.