I've talked about how I admire politicians from early American history because even though they're not the marble statues we make them out to be now, they at least tended to fight for what they legitimately believed. Parties existed, but they wielded nothing like the power they do now.
Recently it's come out that Nancy Pelosi most likely had known about the torture that was taking place in 2002. Suddenly, the Democrats have backed off the calls for torture investigations because their own speaker could be portrayed in an unflattering light.
This is a sad demonstration that Democrats and Republicans do things that are good for their parties, not the American people. Investigations (Watergate, Monicagate etc.) are not really for finding the truth, but are only ways for one party to damage another.
It's very simple, she was hedging her bets in 2002 in case another building came down, so that if it did, no one could say that she was 'soft on terrorism'. She either felt that the CIA was doing something wrong and didn't say anything to not damage her political career or she felt that torture was justified and has now abandoned that position since it's politically expedient.
The two parties feel they own this country and the sad thing is, the voters always affirm their view.