On the bottom of this Amazon Cloud Drive TOS : https://www.amazon.com/gp/help/customer/display.html?nodeId=201376540
6.6 Notice to Illinois Residents. The image recognition features of the Services are not initially enabled for residents of the State of Illinois. If you are an Illinois resident and wish to use the image recognition features of the Services for the photos stored in your account, you are required to read and agree to the important legal information regarding your use of such features here.
I wonder what is the problem of this particular state? Note that "here" leads to a broken link.
Apparently there is an issue around whether facial recognition is legal or not. See the article below: