On that occasion, and many since, I have been advised that closing those gaps would shut the industry down, so for God's sake shut up about it.
So what happens is that a gap is ignored until someone figures out a way to use it, then a whole load of draconian restrictions get introduced, most of which will just be for show.
Modern society still relies on trust and the expectation that we all behave in a reasonable manner - the occaisonal incidents where someone starts using a gun/knife/sword/whatever in an indiscriminate manner show how we're generally unprepared for such a happening, and yet what we'd have to do to guard against such events is unacceptable to most people.