I would guess the downvotes come from this: >Perhaps, but bear in mind that Google is a PRISM partner, whereas Amazon is not. We simply have no way of knowing

I would guess the downvotes come from this: >Perhaps, but bear in mind that Google is a PRISM partner, whereas Amazon is not. We simply have no way of knowing, and our best guess is that the NSA/CIA/HS/FBI gets their own backdoor private APIs to any data source they want, Amazon included.