Within minutes, Ms. Dunin called back, and Mr. Sanborn told her that in the second section, one of the X's he had used as a separator between sentences had been omitted, altering the solution. "He was concerned that it had been widely published incorrectly," Ms. Dunin said.

So, with deference to Sanborn's silly quotation, are there any ideas presently as to how this might impact decryption of the final section?

RE: New York Times: A Break for Code Breakers on a C.I.A. Mystery