>> al zawahri has written a book critiquing the muslim brotherhood and is critical for them for the precise reason they have engaged in democratic politics, which al qaeda regards as kind of against islam. so there is quite a lot of mutual hostility between these two groups. >> but that should not blind us to the shared objectives, the establishment of a society based on sharia law. zawahiri wants to achieve that through violent means. the muslim brotherhood's current leadership wants to achieve that through gradual peaceful means using and abusing the vocabulary of freedom and democracy. >> but you're not arguing this as a reason to keep mubarak in power? >> no. >> you're saying this is a reason to bolster democratic institutions in however long it takes in this transitional period? >> yes. i'm frustrated by what i've been reading in the past three weeks,