I read most of the relevant sections of the document, and there are good reasons for regulating remote sensing systems. I'm fairly familiar with remote sensing systems (SAR, scatterometry, etc) and I'm most interested in reasons why it makes sense to classify the cameras SpaceX stuck to the side of the rocket as remote sensing systems. While technically accurate according the definition provided in the law, it seems pretty dumb. The law even specifically states that handheld cameras don't count, so the distinction apparently comes down to whether there is a person up there to hold a camera that is easily "hand held" size.