Interesting privacy issue. Personally I'd want to protect my own home's "light emissions" from peeping toms. My home, my light!

It's remarkable anyone thinks it's okay for a licensing authority to adopt this Orwellian creepiness. The slippery slope is technology increasingly reveals more detail from incidental light and audio coming from private households. We should act now in policy-making to protect this information as we do or should do for biometric data.