A former Serb soldier admitted at a trial Tuesday that he and other paramilitaries had executed about 200 Croat prisoners of war at a pig farm in 1991. Ivan Atanasijevic's testimony was the first open admission of the slaughter by one of the 16 defendants at the landmark war crimes trial in a special court in Belgrade. Since the trial started in December 2003, only a protected Serb witness has admitted taking part in one of the worst massacres of POWs during the brutal Balkan wars in the 1990s. During the fighting in late 1991, the Serb-controlled Yugoslav army advanced...