this month on book tv, join the discussion on camilla joseph's new biography. enter the chat room. >> last week, the chair of the senator intelligence committee accused the cia of disrupting investigation. cia director later denied her allegations. the next day, the visor chair spoke on the senate floor. he said there may be a need for a special prosecutor to look into the situation. the confirmation hearing from late last year of cia's general counsel. she tells by the agency's techniques. first, some of senator feinstein's remarks. the c.i.a.'s actions. based on what director brennan has informed us, i have grave concerns that the c.i.a.'s search may well have violated the separation of powers principles embodied in the united states constitution, including the speech and debate clause. it may have undermined the constitutional framework essential to effective congressional oversight of intelligence activities or any other government function. i have asked for an apology, and a recognition that this c.i.a. search of computers used by its oversight committee w