Radicalism usually prospers in the gap between rising expectations and declining opportunities. This is especially true where the population is young, idle, and bored; where the art is impoverished; where entertainment—movies, theater, music—is policed or absent altogether; and where young men are set apart from the consoling and socializing presence of women.
The Looming Tower (ed. Vintage, 2006) - ISBN: 9780307266088