Jeff Bezos just found himself on the receiving end of a sternly worded letter.

"In a world with face surveillance, people will have to fear being watched and targeted by the government for attending a protest, congregating outside a place of worship, or simply living their lives," it reads.

As today's letter notes, Nextgov reported earlier this month that the FBI is using Rekognition in a limited capacity.

What's more, The Daily Beast reported in October that Amazon was "pitching ICE on its face-scanning tech" as recently as this summer.

"Amazon must stop providing a face surveillance product to governments."