Supporters of Ratko Mladic wave flags with his picture and reading in Serbian “Serbian hero” during a rally organized by the ultra nationalist Serbian Radical Party in front of the Parliament building on May 29, 2011 in Belgrade, Serbia. Some 7,000 supporters of the former Bosnian Serb army chief Ratko Mladic, who was arrested on Thursday in a village in Serbia after 16 years on the run, took to the streets of Belgrade, to hear speeches and protest Mladic's arrest. Mladic, who is facing extradition to the The Hague, is accused of war crimes, including the 1995 massacre of 7,500 Muslin men and boys in Srebrenica. (Photo by Srdjan Stevanovic/Getty Images)

Leaders of the Serbian radical party stand in front their supporters during a rally organized by the ultra nationalist Serbian Radical Party in front of the Parliament building on May 29, 2011 in Belgrade, Serbia. (Photo by Srdjan Stevanovic/Getty Images)

Wife of Ratko Mladic, Bosiljka Mladic (L) and son Darko Mladic (R), stand during a rally organized by the ultra nationalist Serbian Radical Party in front of the Parliament building on May 29, 2011 in Belgrade, Serbia. (Photo by Srdjan Stevanovic/Getty Images)

Supporters of the Serbian radical party wave with flags during a rally organized by the ultra nationalist Serbian Radical Party in front of the Parliament building on May 29, 2011 in Belgrade, Serbia. (Photo by Srdjan Stevanovic/Getty Images)

Two Serbian protesters sing nationalist songs during a rally organized by the ultra nationalist Serbian Radical Party in front of the Parliament building on May 29, 2011 in Belgrade, Serbia. (Photo by Srdjan Stevanovic/Getty Images)

A man sits on the ground as members of the riot police approach him after a rally organized by the ultra nationalist Serbian Radical Party in front of the Parliament building on May 29, 2011 in Belgrade, Serbia. (Photo by Srdjan Stevanovic/Getty Images)