If Buell Frazier was going to lie about the bag's existence, wouldn't he at least state that the bag was long enough to contain the rifle? Why introduce a bag into the folklore but state that it was not long enough?
Silly conspirators.
So, are you saying that Frazier isn't capable of making up a false story? Frazier claimed he was standing with Sarah Stanton, but Sarah Stanton never even mentioned Frazier in her FBI testimony.
Lee Harvey Oswald himself denied that the bag contained curtain rods on two separate occasions. So, Harvey is refuting Frazier's story of the bag containing curtain rods.
Captain Will Fritz interrogated Oswald. According to Fritz's account: “He said he didn’t have any kind of a package but his lunch. He said he had his lunch and that is all he had. He said, ‘No. I didn’t carry anything but my lunch."
So, Oswald said he only had his lunch when he was interrogated by Fritz.
Also, Oswald denied Frazier's story a second time when Harry Holmes a postal inspector and FBI informer questioned Oswald about Frazier's story of a long package that he claimed Oswald had in the car.
Harry Holmes : "Asked him if he brought a sack out when he got in the car with this young fellow that hauled him and he said, “Yes.”
“What was in the sack?”
Oswald: “Well, my lunch.”
“What size sack did you have?”
He said, “Oh, I don’t know what size sack. You don’t always get a sack that fits your sandwiches. It might be a big sack.”
Holmes: “Was it a long sack?”
Oswald: “Well, it could have been.”
Holmes: “What did you do with it?”
Oswald: “Carried it in my lap.”
Holmes: “You didn’t put it over in the back seat?”
“No.” He said he wouldn’t have done that.
“Well, someone said the fellow that hauled you said you had a long package which you said was curtain rods you were taking to somebody at work and you laid it over on the back seat.”
He said, “Well, they was just mistaken. That must have been some other time he picked me up.”
That’s all he said about it.
So, that's twice Oswald was questioned about a curtain rods and he denied it twice. If the bag did contain curtain rods, Oswald wouldn't deny it on two separate occasions when being interrogated.