Clinton Issues Warning to Balkan Leaders

Reserves special criticism for the Serbs

SARAJEVO, Bosnia — Secretary of State Hillary Rodham Clinton delivered a blunt warning to squabbling Balkan leaders Tuesday that they risk being left behind as their neighbors join economically and diplomatically with Europe.

Standing next to Bosnia's three presidents — one apiece representing ethnic Bosniaks, Croats and Serbs -- Clinton was most critical of positions taken by the Serbs.