LONDON Polish jets have intercepted a "Russian spy plane" over the Baltic Sea for the second time in three days, the defense minister said on Thursday. Polish MiG-29 jets were deployed on Thursday morning to intercept another Russian plane over the Baltic Sea, Defense Minister Wladyslaw Kosiniak-Kamysz was quoted by broadcaster TVP World as saying. Earlier on Wednesday, the Polish army said in a statement that the Russian Il-20 was flying in international airspace without a filed flight plan