I sort of think that Arabs were the only patsy intended in the Anthrax attack. The threat letter was proof that they were the primary spin. The attempt to link Dr. Asaad was badly coordinated (perhaps prematurely sent) but still points to an Arab did it story. I think the shift to find another patsy only came about because someone from either the Army or FBI leaked info that the anthrax was highly sophisticated in its processing and traceable to the US Army labs. This could have been a deliberate attempt by some good guy to scuttle the Arab patsy story.

In the case of the OKC bombing, I dont have a good explanation why they had to bring in a white supremacist and at the same time allegedly having Arab looking men driving around. Maybe only the white supremacists were the intended patsy and the Arab looking guys driving around were not involved. I really dont get that case.

Trying to pin the blame on two none compatible patsies does not make much sense because the second story makes the first story less believable. In which case the spin masters lose credibility which is the opposite of what they would want to achieve.