Lebanese students pass a burning tire laid by Sunni protesters, angry at the killing of Brig. Gen. Wissam al-Hassan, to block a road in Beirut, Lebanon, Saturday, Oct. 20, 2012. A car

 

              Lebanese students pass  a burning tire laid by Sunni protesters, angry at the killing of Brig. Gen. Wissam al-Hassan, to block a road in Beirut, Lebanon, Saturday, Oct. 20, 2012. A car
Lebanese students pass a burning tire laid by Sunni protesters, angry at the killing of Brig. Gen. Wissam al-Hassan, to block a road in Beirut, Lebanon, Saturday, Oct. 20, 2012. A car bomb ripped through Beirut on Friday, killing a top security official and several others, shearing the balconies off apartment buildings and sending bloodied residents staggering into the streets in the most serious blast the Lebanese capital has seen in four years. Dozens of people were wounded in the attack, which the state-run news agency said targeted the convoy of Brig. Gen. Wissam al-Hassan, a top security official in Lebanon. (AP Photo/Hussein Malla)