What is described in the article does not do traffic inspection, it only verifies that all radios are off. I see the argument that there is a use case for the

What is described in the article does not do traffic inspection, it only verifies that all radios are off. I see the argument that there is a use case for the smartphone for taking pictures while operating without radios. But wouldn't a better solution then be a compact digital camera and a notebook? You can invent your own code for note taking that becomes arbitrarily hard to break. You can disguise a compact camera as a smartphone using just a case and a hot glue gun.