I totally agree........cameras in the courtroom would allow people to consider the reactions and body language of all the parties involved, but tweets based solely on a reporter's interpretation of the accused.......isn't of much value.
As to the notion that the expressions of prosecutors or defense lawyers don't matter because they aren't the accused...................
I would point to the OJ Simpson trial............where millions of television viewers got to see the expression on Prosecutor Chris Darden's face when he demanded OJ try on the gloves...........and they didn't fit.
Or the facial expression of co-Prosecutor Marcia Clarke........who had argued vigorously against Darden having OJ try on the gloves.......and having to sit there and watch OJ struggle to put on the gloves.
Some of the best defense lawyers in the world, use their "kindly manner", "folksy way of speaking" or "facial expressions" to try to bring the jury into their confidence and trust.........so they can open up an avenue of belief in their client's innocence.
OJ's lawyer, Johnny Cochrane was good at this.........but the real expert is defense lawyer Jerry Spence, whose folksy charm enabled him to never lose a case.
Here is a link here from Youtube for anyone who wants to view a short clip of Jerry Spence displaying how he questions a witness. There are other clips of him on Youtube.
Gerry Spence opens a can of whup *advertiser censored* - YouTube