 Yale Professor Donald Kagan , at Cornell through 1969 ( 1958 – 69 ) was once a liberal democrat , but he changed his views in 1969 and became one of the original signers to the 1997 Statement of Principles by the neoconservative think tank Project for the New American Century . According to Jim Lobe , cited in The Fall of the House of Bush by Craig Unger ( p . 39 , n . ) , Kagan 's turn away from liberalism occurred in 1969 when Cornell University was pressured into starting a " Black Studies " program by gun @-@ wielding students seizing Willard Straight Hall on campus : " Watching administrators demonstrate all the courage of Neville Chamberlain had a great impact on me , and I became much more conservative . " On the eve of the 2000 presidential elections , Kagan and his son , Frederick Kagan , published While America Sleeps , a call to increase defense spending . 
