ANDRIUS SYTAS BELARUS  opposition leader Sviatlana Tsikhanouskaya on Saturday hailed support from around the world after Minsk scrambled a warplane to intercept a flight and arrested a dissident journalist on board. Belarus has been subject to EU and U.S. sanctions since President Alexander Lukashenko cracked down on pro-democracy protests after a disputed election last year. But his decision to intercept an international airliner in Belarusian airspace and arrest the 26-year-old has brought threats of more serious action. Most European countries told their aircraft to avoid Belarus airspace and banned Belarus carriers from their skies. "I am very touched by the…