BRDO PRI KRANJU, Slovenia (Reuters) - Hungary's Prime Minister Viktor Orban said that a fence should be erected on the Macedonian and Bulgarian borders with Greece to curb the inflow of migrants into Europe. "If we cannot secure the outer border (of the EU), regardless of how costly or demanding that is, we will destroy the Schengen regime by ourselves," Orban said, referring to Europe's free-travel area. He was speaking during a visit to Slovenia. (Reporting By Marja Novak; Editing by Dominic Evans)