I don't suggest that AT ALL. That is what Oswald SAID. He obviously knew he'd been in the USSR. Before he was arrested, I don't think the DPD had the faintest idea he'd ever been in the USSR. Like all of his other lies and absurdities, this was just Oswald being Oswald.
Oswald was not being absurd or off topic when he mentioned Russia being the basis for what most interested the "AGENTS" as he was being held in the Dallas Police station.
There were two FBI agents questioning him and if anyone was behaving in a bizarre manner it was the FBI Agents .
One of them named Agent Hosty.
They questioned him about whether he had been to Russia , about his time in the Marines.
Huh!
Why would the first things the FBI want to know about was to question Oswald the assassin who just killed the president on things they knew all about already
?The questioning from agent Hosty also shows that Oswald knew he had been under federal surveillance for some time and that the FBI had been harassing Marina at least 2 times.
It's all in the Dallas PD summery of the interrogation:
https://www.aarclibrary.org/publib/jfk/wc/wr/pdf/WR_A11_ReportsDPD.pdfWhat do you think about Oswald actually being on point in mentioning his having been to Russia as a main concern of the Feds who were involved in questioning him?