Conversation so far:
What is Dan Rather's connection to the Killian documents?
Dan Rather reported that a series of memos critical of President George W. Bush had been in the personal files of Lt. Col. Jerry B. Killian.
What were the Killian documents Dan Rather reported about?
A series of memos critical of President George W. Bush's Texas Air National Guard service record.

Question: What was in the files?
Self-contained rewrite: What was in the Killian files which Dan Rather reported about?