CIA-Senate dispute 101: 9 questions about who's spying on whom

Did the Central Intelligence Agency spy illegally on Senate Intelligence Committee computers? Here are nine questions and answers about a complex story that starts with waterboarding and ends in a secret CIA facility in northern Virginia.

2. How do you investigate a spy agency?

Very carefully. The CIA agreed to provide Intelligence Committee staffers with documents regarding the program, but only at a secure CIA facility near agency headquarters in Langley, Va., not in the Senate itself.

The agency set up a sparsely furnished work area for the staffers, complete with its own computer network. These computers were isolated from CIA networks. The only agency employees permitted to access them were information technology workers, according to an agreement reached between Feinstein and the CIA. Agency higher-ups were supposed to keep their hands off the inquiry.

2 of 9