Mr. Obama is a product of a leftist intellectual current, in which American global power and influence has generally if not exclusively been viewed as a negative force. This brand of revisionism arose from 1960s radicalism and opposition to the Vietnam War. The United States is portrayed as a neocolonialist bully, imposing its will on helpless people in the developing world for the benefit of American corporations. U.S. military power is viewed through the distorted lenses of the My Lai Massacre and Abu Ghraib. The CIA is a tool for assassination, coups and disinformation. Nuclear weapons are an unqualified evil....