These are selected, based on the Version 0.7 selections, or what are key articles linked from the main September 11 attacks article, along with the set of World Trade Center articles, the flights, and the hijackers which are all potential featured topics.
In decent shape, but the "Refuge in Afghanistan" section needs cleanup. The "Regional activities" section used to be a mess, with material since put into subarticles, so it's better now. But, the section needs more substance now in summary style.
Qutb was an important influence for Osama bin Laden and Al-Qaeda. The article is mostly good shape, though it has an "Original research" maintenance tag in one section.
Although there is a substantial amount of useful information, the article needs much work to bring up to standards. The task of adding sources and cleanup may be very time-consuming. Large portions of the article do not have inline citations. The article also has a lengthy "public opinion" section which is merely a list. The "Human rights abuses" section has been tagged with neutrality issues since December 2007. The article also seems not very up-to-date with more recent events in Afghanistan.
Needs more work to get it to GA quality, with many more sources, including The New Jackals by Simon Reeve and Two Seconds Under the World by Jim Dwyer.
This is a featured article, though it passed FAC a few years ago when the criteria were not as stringent. The article did pass a featured article review in September 2007, so it's still in pretty good shape, but at some point it can use some work to get it up to current featured article standards.