NEW YORK -- New York Army National Guard Sgt. Neftali Perez, a member of Joint Task Force Empire Shield, stands guard near the ground zero subway station at the World Trade Center May 2. Perez and other members of the state’s security task force augmented law enforcement as the crowds gathered at the World Trade Center to note the death of Osama Bin Laden. Bin Laden and the Al Qaeda terrorist network attacked the city on September 11, 2001, killing nearly 3,000 innocent civilians. Photo by Warrant Officer Ubon Mendie, NY Guard.