The round-up of 10 suspected spies in the United States is causing as much confusion as consternation, with many questioning why so many people spying for so long apparently produced so little in the way of intelligence.
The alleged Russian citizens lived for years in the United States, many under assumed identities.
But according to experts, the information they sought was readily available.
Al Jazeera's Nick Spicer reports.
Content on this website is for general information purposes only. Your comments are provided by your own free will and you take sole responsibility for any direct or indirect liability. You hereby provide us with an irrevocable, unlimited, and global license for no consideration to use, reuse, delete or publish comments, in accordance with Community Rules & Guidelines and Terms and Conditions.