I am not sure what you mean by verified. It looks like Gertz simply reported that it was in a gubmint report last week, which I found odd. I respect Gertz as a gutsy national security writer, but this wreaks of recycling old news for propaganda effects.
Of course, Carl has yet to print a correction that Salman Pak was not linked to 9/11, but nevertheless:
Sunday, April 6, 2003 2:48 p.m. EDT
Saddam's 9/11 Hijack Training Camp Destroyed
http://www.newsmax.com/showinside.shtml?a=2003/4/6/144706