A few voices on the Web are floating other possibilities—that the program could’ve had a domestic component, or otherwise targeted Americans. There’s no real substantiation for that speculation yet, and it may prove unfounded—indeed, it’s quite possible that Congress’s response is not proportional to the size of the revelation. In either case, major papers should keep pushing hard on this story. Hopefully, we’ll learn more details soon.

Greg Marx is a CJR staff writer. Follow him on Twitter @gregamarx.