1- no she didn't want to kill her son. marco wasn't able to recieve orders after removing his shoulder's ship. but shaw had an upgrade to recieve orders directly to the brain.

Yeah, lol - I ramble.
I almost regret watching the film. The almost factor being that the commentary is so utterly self congratulatory and boneheaded it's a laugh riot, almost makes up for it.

Thanks for the response.
And, actually this:

And irrelevant imo, as the number of other questions you ask should indicate: this is a subpar remake.

was the most helpful bit of all!
M.

1. Yes; when Shaw passed the phone to Marco and she used the name trigger he is then ready to be given instructions.
2. In that scene her son is also ready for instructions, which is what she's explaining to her; she's explaining the plan, which is that he will stand some distance away from the President, lowering the risk of him being hit when Marco shoots the new pres.
3. Ray wasn't supposed to get so close to the new President; him not stopping at his mark and instead intentionally congratulating new pres was the first indicator that he had somehow 'deprogrammed'. That's why the filmmakers pointedly include shots and dialogue about him not standing on his mark, his mother looking slightly flustered and confused, but no one is explicit because they're in front of the big audience. His mother's plan was for the new pres to get shot with Ray definitely a couple of meters away, the Pres would die and instead Ray would become President. Then Ray would be controlled throughout his presidency, as is discussed throughout the movie. Regarding Ray getting him and his mother shot - Ray wanted to do this. He signals Marco with his eyes to, ya know, 'do it'. Whether Marco did so because Ray had somehow deprogrammed him to allow a slither of choice or whether Ray had reprogrammed him to shoot them against his will is unclear.
   And irrelevant imo, as the number of other questions you ask should indicate: this is a subpar remake. The filmmakers changed some stuff [here it is neurological changes, tracking devices and chips under the skin instead of straight up hypnosis along with others story changes]. Then in other ways it hasn't been updated to compensate the different american culture from the 60s. It was easy to write in the 60s that a bunch of soldiers disappeared for days without it being mildly implausible, whereas now technology makes that seem a bit strange. It could be written away with extra conspiracy stuff about corruption hiding any evidence of what happened, but the film isn't even all that advanced regarding corporate, media and political power and corruption. Including the idea that corporations would need to go to so much trouble just to get someone in the White House that will do what they want. The original was timely, prescient and clever, whereas this film bottles the chance to say something similar about the current political climate.