Diagram of 9/11 - Note that there are up 9 buildings dedicated to world trade functioning. Both trade towers were destroyed alongside world trade tower 7 (a much smaller building), which happened after the collapse of 1 and 2. Although world trade tower 7 'collapsed', and has been documented through official video and testimony, it did not feature in the official 9/11 commission.
Professor Peter Dale Scott.
Peter Dale Scott (born 11 January 1929) is a Canadian poet and a former English professor at the University of California, Berkeley. The son of noted Canadian poet and constitutional lawyer F. R. Scott and painter Marian Dale Scott, he is known for his anti-war stance and his criticism of U.S. foreign policy dating back to the Vietnam War. He spent four years (1957-1961) with the Canadian diplomatic service. He retired from the UC Berkeley faculty in 1994.
The Road to 9/11
Amazon excerpt: This is an ambitious, meticulous examination of how U.S. foreign policy since the 1960s has led to partial or total cover-ups of past domestic criminal acts, including, perhaps, the catastrophe of 9/11. Peter Dale Scott, whose previous books have investigated CIA involvement in southeast Asia, the drug wars, and the Kennedy assassination, here probes how the policies of presidents since Nixon have augmented the tangled bases for the 2001 terrorist attack. Scott shows how America's expansion into the world since World War II has led to momentous secret decision making at high levels. He demonstrates how these decisions by small cliques are responsive to the agendas of private wealth at the expense of the public, of the democratic state, and of civil society. He shows how, in implementing these agendas, U.S. intelligence agencies have become involved with terrorist groups they once backed and helped create, including al Qaeda.