Another good point someone identified: In the new video, if Fields was hurt at the moment she was stopped moving forward, wouldn’t she show discomfort on her face?
IF there were to be a grab -to cause bruises- it would most likely have to have happened in the new video segment. Yet, the question remains on her facial expression. No wince in a facial expression.
Implies: The new video seems to not show any discomfort - i.e. like a pinch or hard grab that would result in forearm bruises.
BTW- I was up all night stepping through the hi-res frame-by-frame of the Cspan vid. The security person does NOT do a grab on Fields’ forearm. The security person does seem to place his hand on the top of her forearm. But this is only the fingers. The thumb is straight. Thus no grip was formed. His fingers curved slightly. So, no grab there. (sequence consistent with security person pushing or guiding the forearm downward - but just a very minor brushing). I don’t see how this could have caused any bruising (very minor brush by the security person).