“The ‘fear of ideas’ that has taken root in the United States since September 11, 2001, with the refusal to grant visas to a number of academics and intellectuals, most of whom are Muslims, strikes at the very heart of American democracy. The muffling of critical opinion should be of immediate concern to all freethinking individuals. To accept such a state of affairs is to accept that the United States, in the name of the ‘global war on terror’ and national security, requires all citizens to think the same way.”