Just came across an interesting article from a year ago:
http://abcnews.go.com/sections/world/DailyNews/alqaedaplans020201.html Feb. 1, 2002
Manual of Terror
Nuclear Plants, Monuments Are Good Targets for Attack, Al Qaeda Manual Says
I S L A M A B A D, Pakistan , Feb. 1 — The instructions are simple but chilling: Attack sites with "high human intensity" like skyscrapers, nuclear plants and football stadiums. Pick targets of "sentimental value" like the Statue of Liberty, Big Ben and the Eiffel Tower.
That's some of the advice to members of Osama bin Laden's al Qaeda fighters on the best ways to kill thousands of people and spread fear in the United States and Europe. It's contained contained in the 11-volume "Manual of Afghan Jihad."
5,000-Page Manual of Terror
"There must be plans in place for hitting buildings with high human intensity like skyscrapers, ports, airports, nuclear power plants and places where large numbers of people gather like football grounds," the chapter said. It also recommended major public gatherings such as Christmas celebrations.
The manual said special units should work in areas with large Jewish communities. "In every country, we should hit their organizations, institutions, clubs and hospitals," it reads. "The targets must be identified, carefully chosen and include their largest gatherings so that any strike should cause thousands of deaths."