Russian border guards have been told to remain alert to prevent potential terrorists from using this year\'s hajj - the pilgrimage to Muslim holy places - as an opportunity to move mercenaries and weapons into Russia, North Caucasus Division Border Guard Service press chief Sergei Livantsov told Interfax on Tuesday. \"Border guards will also make it impossible for extremist leaders or wounded militants to leave the country and will prevent the delivery of materiel or finances to illegal militias inside Russia,\" he said. \"Such attempts cannot be ruled out,\" Livantsov said. (Interfax)