The New Republic’s Spencer Ackerman is concerned that Zarqawi’s demise may work to Al Qaeda’s benefit:

Painful as it may be to admit, the biggest beneficiary of Zarqawi’s death may very well be Al Qaeda. Last year, Al Qaeda second-in-command Ayman Al Zawahiri—a figure whose profile in jihadi circles far eclipses Zarqawi’s—wrote Zarqawi a letter gingerly instructing him to stop his seemingly indiscriminate murder of Muslims, since it was costing Al Qaeda valuable Islamic hearts and minds. (When the letter surfaced, Zarqawi defensively insisted it was a fraud.) Zarqawi’s practice of declaring fellow Muslims infidels led him and Al Qaeda into strategic miscalculation, as with his November bombing of Jordanian hotels that led to widespread anti-Al Qaeda demonstrations in the streets of Amman. He even declared in his last propaganda message that Hezbollah was an agent of Israel. Whereas once Zarqawi allowed Iraqi Sunnis a face-saving way to distance themselves from murderous jihadis, in death he may allow Al Qaeda to mend fences with Muslims and perhaps even other terrorist groups that his “excesses” have alienated. Zawahiri’s extraordinary letter suggests that Al Qaeda—following an obligatory statement praising Zarqawi as a martyr—will do exactly that.

In Iraq, such a jihadist opportunity may come fairly quickly. Today Maliki announced the long-delayed appointment of the interior and security ministers. Most importantly from the perspective of Iraqi sectarianism, the interior ministry will remain in the hands of the ruling Shia faction, which Sunnis will most likely see as a sign that Shia death squads will continue operating under the ministry’s auspices. With perceived besiegement by the Shia continuing, the next Al Qaeda “prince”—the group has already announced a replacement for Zarqawi—can turn to Sunni insurgents and offer to turn over a new leaf, discarding the baggage of Zarqawi in the face of a shared sectarian threat. With any luck, that overture could be rejected, owing to tensions between Al Qaeda and the Sunnis outliving Zarqawi—but that may take luck, as opposed to a sense of divergent interests.