1. Virnetx has obtained their patents from a defense contractor, SAIC, and continues to "expand" their technology and IP VIA the genius engineers that work for VHC, such as Dr. Robert Short.
To expand on that, VHC didn't just license the patents from SAIC. Munger, Short and Larsen were the original inventors of the technology at SAIC who saw the potential of the technology and the market moving toward mobile devices. They left SAIC to bring the technology to its full potential and implement it in the commercial Telco market (SAIC uses it for CIA applications).
It isn't "trolling" to charge a toll on a bridge that you built yourself and everyone in the world wants to travel across voluntarily.