We've got al-Haznawi with a lesion in June. (These guys are pretty good if they didn't panic and get rid of it all then.) We've got deaths in October and November. It seems to me some of this got mailed after 9/11.
If they were trying for simultaneous action, they would have known the mail wasn't the way to go.
It didn't get mailed after 9/11. It got "found in empty equipment" after that time and then tossed into operation 010!
You can find my other detailed posts on how this would normally happen and why it would travel from South Florida to New Jersey and not other places.