If someone is interested in reporting on this publicly, I can ask my friend if he would allow an inteview.
But my point is really that we are barking up the wrong tree. The man was a communist, so why do we care about Columbia, which is full of communists? Just ask any freeper who went there.
If someone wants to go on the record saying Barry did attend the full complement of classes, we may be assured the many others that have attested otherwise will be scrutinizing whatever details are claimed closely, all of which is fine in a free society.