BBC News:

After being challenged as to whether homeowners should tell guests smart devices – such as a Google Nest speaker or Amazon Echo display – are in use before they enter the building, he concludes that the answer is indeed yes.

And:

“Does the owner of a home need to disclose to a guest? I would and do when someone enters into my home, and it’s probably something that the products themselves should try to indicate.”

Fascinating ethical question. If you have a device that records, do you need to disclose this to a visitor? Or should all people assume they are being recorded at all times?

Solid interview with Google Senior Vice President, Devices & Services Rick Osterloh.