Sudanese hard-liners vowed Friday to defy a U.N. Security Council resolution referring Darfur war crimes suspects to the International Criminal Court, saying it was unfair for Sudanese suspects to face the tribunal when Americans are exempt. Sudan opposes sending any of its citizens accused of committing war crimes during the two-year conflict in the country's west to a foreign court, saying Sudan's judicial system will take charge of any such prosecutions. The U.N. resolution passed Thursday only after controversial concessions were made, including guarantees that citizens of countries not party to the ICC working in Sudan _ such as the United States _ would not be handed over to the court or any other nation's judiciary if they committed crimes in the African country.