10th anniversary of 9/11 nears, U.S. ups security
World NewsSept 1, 2011
The south tower of the World Trade Center collapses during the September 11 terrorist attack in 2001. (AP-Yonhap News)WASHINGTON (AP) ― As the United States prepares for the 10-year anniversary of the 9/11 attacks, a date al-Qaida has cited as a potential opportunity to strike again, security is int