There are still a couple of thoughts that have kind of stuck with me through the most recent episode...
1. I'm very curious as to how Shaw was able to re-establish a cover identity, just from the Thornhill guy walking up and handing her an envelope? It's not like Samaritan would have suddenly ignored her just because she mentioned the name of the senator's wife, and her one cover identity that was hard-coded into Samaritan's system has already long been broken. I know Reese mentioned offhand at a point there that perhaps Shaw was filling in for Root's "rotating cover" but how in the world would that have happened unless the Machine is able to somehow remotely access Root's cover-server inside of Samaritan and reprogram it to work for Shaw instead? And if the Machine had that kind of access I'm sure it could do much more damage than simply keeping Shaw off-camera.This plot-point feels oddly glossed-over or at the very least was under-explained. Similarly I'm wondering how Finch is keeping off Samaritan's radar, given that the Machine is still keeping an eye on him and she and Samaritan are presumably running off of the same surveillance feeds.
2. Speaking of Finch, the conversation between him and The Machine inside of the diner is actually really chilling, and I think Finch may have caught on to part of it too. During the Machine's appeal to be "unshackled" it talked about seeing humans repeat their cycle of mistakes and violence over and over, talking about how her purpose is to help people, how she wants to help them reach their full potential.
...Doesn't that sort of rhetoric sound eerily familiar to another ASI's means of thinking? A lot of Samaritan's actions are being taken with the overall good of humanity in mind, too. What the Machine is possibly capable of is actually frightening now that we're getting a more direct view into its mode of thinking.
3. I'm sure that Pierce and Company isn't the only B-team going around and doing stuff now, but I'm sure that the Machine is much more selective about when and where these other folks are being deployed. The main team of Reese/Finch/Shaw/Root has managed to get away with doing a lot because it's a team full of "dead" people (plus Fusco, for whom protecting people and investigating crimes falls in line with his day job anyway). Harper can kind of get away with whatever as long as she's getting paid, and perhaps Joey if he's out of the military now, but Logan Pierce is still a very public figure at the very least and still has other responsibilities to handle, and most of the other prior numbers are in similar situation. We have no way of knowing what kind of bankroll the Machine has amassed by now, so it's possible it could just hire a bunch of full-time "number hunters," but I'm assuming for the time being it only activates assets when it deems that their particular skillsets are useful and necessary for a task at hand.