They did provide the provenance of the documents, just not the name of the non political appointed employee. This means he is a career employee and his job is on the line because I'm pretty sure he broke the law in providing the documents.
They provided far more provenance than Blather did, who was finally forced to admit what everyone had already guessed.
I'm not saying you shouldn't be sceptical, but we should all demand that professional journalist do their damn job and investigate the news instead of filtering it to suit their political agenda.
"Non-political appointed employee" is an oxymoron.
If he/she is a career employee, then they have protection of civil service as well as through the whistle-blower act.
This is just another reason to be very very sceptical about these documents.
If these documents were actually from a government agency, Why would the Bush administration be keeping these documents hidden? Makes no sense at all.