The reporting of sightings, like Tweaked has said, keeps it in the public eye, but they are still sightings and add little to what we want to know.
If the science is being kept as a secret it is time to make it known.
I have it from several reliable sources that this is the case, but all this secret stuff does is keep us stuck behind the eight ball. It stops the world from moving forward.
This is the basic idea behind
http://www.gravitycontrol.org to put it out there and make it available.
If we were to apply for a patent, the application could be deemed a national security issue and we would not be permitted to work on our own project, so we avoid the patent and offer what we have openly.
There are roughly 5000 patents either classified or stopped at the moment, which is a very effective way of controlling the flow of information.
This keeps most people in the dark......which does not suggest a free and open society.