The conservative blog Powerline has a roiling debate or series of charges that the documents published by CBS last night are forgeries.

The basis of the claim is that the sort of proportional font spacing evidenced in the memoranda wasn't available at the time in question. It only came later with word processors and computers and laser printers. Basically, they say, all people had back then were old fashioned block-type typewriters.

On the face of it, that sounds logical to me. But the editor of the site has now posted the comments of at least one reader who says such machines were actually widely available at the time.

It seems worth noting that the White House accepted the documents as genuine and even began releasing them to other journalists yesterday evening -- though it's not clear to me whether they were releasing their own copies or simply passing on what CBS had given them.

The deeper point is that CBS reported that they had handwriting experts scrutinize these documents to ascertain their authenticity. It seems hard to imagine they'd go to such lengths to have experts analyze them and not check out something so obvious as seeing if they'd been written by a typewriter that was in existence at time. (Hard to imagine or, if true, unimaginably stupid.)

One way or another, I doubt we'll have to speculate about this for very long. This question about what sort of typesets were available in 1973 should be easy enough to settle.