[Swimmer]

MoroneSaxitilus,
Those software programs are easy to come by for virtually any subject matter. The government most assuredly filters out the words you just printed and more. My wife has a girlfriend who is quite brilliant and self-taught in computor sciences. She got paid by a company to latch onto and filter out everything that traveled the net about a certain medical subject. I watched it all one night while I was playing cards at her house. It was amazing. The woman and my wife were math majors in the same college. So if she could latch onto what she needed in the medical field any government agency can do the same.