From his letter to the editor of USA Today in March 2006:
The sad truth is that although not having a history of democracy bears little significance on whether a group desires, deserves or can handle freedom, people have long used it as an excuse to support the abrogation of liberty. It is the excuse that many Americans once used to justify the enslavement and oppression of indigenous people and African-Americans. It is the excuse that many people use today to justify Israel's nearly 40-year occupation of the Palestinian West Bank.
Read the complete letter here.
