I just cross-checked Yousef and Langan (Peter Langan is the prisoner Mapes was helping. Who was the other? I haven't read all the articles yet) and it is the same prison.
Cite for the prisoner, Peter Langan: Letter to Mapes comes from the prison at Florence, Colorado:
letter from prison to Mapes, pdf
and
excerpt:
CANDIOTTI: When Peter Langan was captured in Columbus, Ohio early in 1996 after the FBI opened fire on his white van, agents did find a half dozen blasting caps in his hideout. But they were destroyed without checking whether they could be traced back to the Oklahoma attack. The FBI says it looked hard and found no link between the bank robbers and McVeigh -- not blasting caps nor anything else.
~snip~
Cite for Yousef:
Ramzi Yousef From Wikipedia, the free encyclopedia.
excerpt:
He is currently held in the Supermax Prison in Florence, Colorado. He had the Unabomber, Terry Nichols, and Timothy McVeigh as his cellmates.
~snip~
This leads me to believe that Mapes knows there is a story behind the OKC bombing.
This is VERY, VERY interesting stuff you have there, cyn.
Perhapes Mapes read the book The THird Terrorist by Jayna Davis which James Woolsey, former CIA director said is a must read and the world owes a debt of gratitude to Davis.
My guess is Mapes was going to cover-up that Iraqi exiles helped plan the OKC blast with the use of Lily Whites (McVeigh and Nichols).