Some U.S. intelligence agencies are using a system running on wiki software to gather information in a collaborative, real-time environment. The system gathers intelligence, at varying degrees of classification, from 16 different agencies.
Interestingly, according to an article in the Los Angeles Times:
Officials said they were not making the network available to members of Congress or other policymakers, largely because of a reluctance to disseminate material that analysts view as a work in progress.
It seems that the staid definition of HT is in play here as well. Hypertext or other dynamic applications are always a work in progress, a method more than a product.