The PO Box has been discussed at length here on FR. Here is a document from Bush, released in February this year. Page 9, Box #16 ...
http://www.usatoday.com/news/bushdocs/6-Reassignments_Spilt_Training.pdf <--
And another source ... (one page, same document, Box #16) ...
http://www.cis.net/~coldfeet/doc7.gif <-- Clickit
Ok, I see the two docs with po box 34567, however I thought it was debunked.