There is a new statement from CBS News, contained in a story on its website.
The relevant portion of the story is as follows:
“This report was not based solely on recovered documents, but rather on a
preponderance of evidence, including documents that were provided by
unimpeachable sources, interviews with former Texas National Guard officials
and individuals who worked closely back in the early 1970s with Colonel
Jerry Killian and were well acquainted with his procedures, his character
and his thinking,” the statement read.
“In addition, the documents are backed up not only by independent
handwriting and forensic document experts but by sources familiar with their
content,” the statement continued. “Contrary to some rumors, no internal
investigation is underway at CBS News nor is one planned.”