THE CAVE WALLS SHRINK:

Gap opens between Al Qaeda and allies: A backlash builds over the network's tactics, including suicide attacks. Its leaders try to defuse the anger. (Josh Meyer, 4/24/08, Los Angeles Times)

Al Qaeda increasingly faces sharp criticism from once-loyal sympathizers who openly question its ideology and tactics, including attacks that kill innocent Muslims, according to U.S. intelligence officials, counter-terrorism experts and the group's own communications.

A litany of complaints target Osama bin Laden's network and its affiliates for their actions in Iraq and North Africa, emphasis on suicide bombings instead of political action and tepid support for, or outright antagonism toward, militant groups pressing the Palestinian cause. [...]

Sayyed Imam Sharif, an Egyptian physician who once was a senior theologian for Al Qaeda, was one of Zawahiri's oldest associates. The author of violent manifestoes over the last two decades, Sharif did an about-face while incarcerated in Egypt. Several other prominent Muslim clerics and former militants have similarly condemned Al Qaeda.

Such rifts have been emerging for several years, but they have become increasingly contentious lately, in cyberspace and on the streets of some Arab countries.