World Leader Talks About Osama's Death

   World leaders expressed relief over the killing of Al Qaeda leader Osama bin Laden, though their praise was tempered by fears of the international terrorist group's retaliation.

"Retribution inevitably reaches all terrorists," noted Russian President Dmitry Medvedev.

   Before saying that Russia was "ready" to step up its cooperation with the U.S.in the fight against international terror networks. 

"Only a joint and united fight against global terrorism can achieve substantial results. Russia is ready to step up this type of cooperation," he said. 

   French President Nicolas Sarkozy, British Prime Minister David Cameron and German Chancellor Angela Merkel echoed those sentiments. Meanwhile, Hamas leader Ismail Haniyeh condemned the killing. 

"We regard this as a continuation of the American policy based on oppression and the shedding of Muslim and Arab blood," he was quoted by Reuters as saying.