hussain haqqani, pakistan's ambassador to the u.s. from 2008-2011, examines the roots of this fractious partnership in a new book "magnificent delusions pakistan, the united states, and an epic history of misunderstanding." hussain haqqani, thank you for joining us. >> a pleasure being here, margaret. >> warner: let's go a little into the history because your book is really a history book and you begin with, "a doubtful friend is worse than a certain enemy. let a man be one thing or the other and then we know how to meet him. of so who is the doubtful friend here? >> the united states is the doubtful friend for pakistan, and pakistan is the doubtful friend for the united states. >> warner: and are the doubts well rooted? >> i think the doubts are very well rooted. the reason is pakistan's expect fraigz the relationship with the united states are very different from what the united states wanted. what has gone wrong over the years is the americans have assumed that they can buy over pakistan's leaders with promises or delivery of aid.