VLADIKAVKAZ, Russia--A suicide bomber killed himself and 16 other people in a huge blast near a busy market in Russia's North Caucasus on Thursday in a new blow to Kremlin efforts to rein in a growing Islamic insurgency.More than 100 people were wounded in the attack in Vladikavkaz, capital of North Ossetia province, authorities said. The bomber detonated an explosive packed with metal bars...
