UPDATE: Brennan out of running for top intel post http://www.salon.com/opinion/greenwald/

Open Letter to President-Elect Obama: Break With the Dark Side. Do Not Nominate John Brennan as CIA Director

Deputy director of the CIA under George Tenet, John Brennan headed the Terrorist Threat Integration Center and its successor, the National Counterterrorism Center, until retiring in 2005.

 It simply is noteworthy of comment and cause for concern -- though far from conclusive about what Obama will do -- that Obama's transition chief for intelligence policy, John Brennan, was an ardent supporter of torture and one of the most emphatic advocates of FISA expansions and telecom immunity. - Glenn Greenwald  

see also "John Brennan: Change We Cannot Believe In", http://andrewsullivan.theatlantic.com/the_daily_dish/2008/11/brennans-ambigu.html