“The test of democracy is freedom of criticism.”
—David Ben-Gurion (1886-1973), Founder of Israel

From “A Beautiful Friendship?: In search of the turth about the Israel lobby’s influence on Washington, The Washington Post.

“…the purpose of all such smears, no matter the direction from which they come, is to prevent all questioning and criticism, and to end debate.”
—Arthur Silber, “The Impossibility of Discussing Anything at All”

Both articles pointed out in an article by Glenn Greenwald.