As John notes, whether Nancy Pelosi knew or didn't know about the Bush administration's authorization and execution of torture doesn't matter. Either Pelosi didn't know or she abdicated her responsibility as a political leader and American by not speaking up and opposing it. Either way, it doesn't matter.
What matters is that the government tortured people.
(The argument over whether the evidence was good or not is mostly a red herring, as well)
Also, Harry Reid seems to have taken a break from continually getting rolled by the Senate Republicans to come out against an investigation into an activity that stained the soul of America. A lot of brilliance there, as usual.