Nowadays people would use some kind of HDCP-breaking digital capture device, and regulating all video cameras is basically impossible with their ubiquity, but it's crazy to think about video cameras being modified against our will to suit the needs of one industry.
Those in power will always try to take control away from us. Don't let them.
http://www.pcworld.com/article/229647/counterfeit_money_on_c...
Is it possible to get results this way, yes of course. Are the results any good, not really. Commercial pirates work with people in the exhibition sector, amateurs rely on known weaknesses in popular disc formats. You'd have to be pretty desperate to rely on streamed media as your 'original.'
Beauty of digital.
As for the spooks, depends on what you mean by "easily".
Edit: According to a video[1] posted on Vimeo (which claims to be from a DMCA hearing) representatives of the MPAA appear to make recommendations on how to do the capture and they provide some tips that will increase the quality of the final product.
For example, hooking directly into the audio output; and, removing other light sources.