The Sept. 11 Attacks, Remembered -- PICTURES
Updated: September 11, 2011 | 4:27 p.m.
September 10, 2011 | 10:03 a.m.
Sunday marks 10 years since the terrorist attacks of Sept. 11, 2001. Memorials are planned nationwide, ranging from small, informal vigils to large ceremonies featuring President Obama. Here's a look at how the country (and the world) is marking the 10th anniversary.