Making Conservatives Cringe Since 1977

PARIS -- The killing of Abu Musab al-Zarqawi deprives Islamic terrorism of one of its most high-profile and violent poster boys. But it leaves largely intact the threat of attacks from small, independent cells - the "100 bin Ladens" that Egypt's president once said could be spawned by the U.S.-led war on terrorism.

Once they absorb the psychological blow of his death, al-Zarqawi's followers and other militants outside of Iraq not directly associated with him could regroup and continue with their bomb plots and killings.

Al-Qaida has shown great resilience, and its network of networks and followers has continued even as top leaders have been killed or captured. Even with Osama bin Laden in hiding, other militants have stepped forward to make good on his calls for terror attacks. Hundreds of arrests in France, Britain, and elsewhere in Europe have thwarted plots but did not stop the attacks on transport systems in Madrid, Spain, and London.