Ex-presidential candidate Oscar Ivan Zuluaga, a close ally of former right-wing president Alvaro Uribe, is being questioned in relation to an alleged plot to spy on the participants in the peace talks that took place in Havana, Cuba. Zuluaga shares Uribe's hard line stance against the peace negotiations with the Revolutionary Armed Forces of Colombia (FARC). Natalia Margarita reports from Bogota. teleSUR