Plan for hunting terrorists signals U.S. intends to keep adding names to kill lists
Over the past two years, the Obama administration has been secretly developing a new blueprint for pursuing terrorists, a next-generation targeting list called the “disposition matrix.”

The matrix contains the names of terrorism suspects arrayed against an accounting of the resources being marshaled to track them down, including sealed indictments and clandestine operations. U.S. officials said the database is designed to go beyond existing kill lists, mapping plans for the “disposition” of suspects beyond the reach of American drones.

Although the matrix is a work in progress, the effort to create it reflects a reality setting in among the nation’s counterterrorism ranks: The United States’ conventional wars are winding down, but the government expects to continue adding names to kill or capture lists for years.

Among senior Obama administration officials, there is a broad consensus that such operations are likely to be extended at least another decade. Given the way al-Qaeda continues to metastasize, some officials said no clear end is in sight.

“We can’t possibly kill everyone who wants to harm us,” a senior administration official said...

...Before the attacks of Sept. 11, 2001, the United States recoiled at the idea of targeted killing. The Sept. 11 commission recounted how the Clinton administration had passed on a series of opportunities to target bin Laden in the years before the attacks — before armed drones existed. President Bill Clinton approved a set of cruise-missile strikes in 1998 after al-Qaeda bombed embassies in East Africa, but after extensive deliberation, and the group’s leader escaped harm.

Targeted killing is now so routine that the Obama administration has spent much of the past year codifying and streamlining the processes that sustain it...