In the first of the HARDtalk America series, Stephen Sackur talks to one of America's foremost civil rights activists, Rev. Jesse Jackson. He campaigned for the Democratic Presidential nomination in 1984 and 1988. Barack Obama has acknowledged that if he succeeds it will be because he is standing on the shoulders of Jesse Jackson and others of the civil rights generation. But Jesse Jackson has been slow to back Obama's candidacy and has criticisms of his campaign. Stephen Sackur asks him why.