Exactly, these Conspirators have apperently gone to all the trouble of having photos ready of Oswald holding the rifle, created a massive document chain linking Oswald to the rifle, plant the rifle, etc etc and after all this effort make the most fundamental mistake of all time and simply let Oswald do as he pleases all during lunch so he could be seen by anybody? And what is really odd is that these CT's actually believe that's precisely what happened.
JohnM
How did they even know Oswald was in the building at the time of the shooting? That he wasn't outside watching the motorcade? Hell, that he was even at work that day?
In order to frame a person they have to be "frameable." That is, they can't have an alibi that can be corroborated by other witnesses. And that the evidence framing them is plausible.
We see all sorts of limits on the ability to frame Oswald. The conspiracy believers don't see such limits. This all powerful "they" and "them" can do anything. Plant evidence, alter films, intimidate and coerce witnesses...there are no limits. It's this conspiracy mindset that we cannot reason with. We see it in all sorts of conspiracy beliefs that always involve these powerful elements that have unlimited power.
They had such unlimited power that the only way they could stop JFK from threatening their power - by ending the Cold War, leaving Vietnam, dismantling the national security state, making nice with Castro, whatever - was to shoot him in broad daylight in the middle of a street with hundreds of people watching, many with cameras. That's simply absurd. And, if you're going to do all of this anyway, you're going to plant witnesses in the crowd to claim they saw Oswald shoot JFK. Among other things.