One World Trade Center overlooks the ground zero memorial site, Saturday, Sept. 10, 2011, in New York. Ceremonies will be held at the site Sunday for the 10th anniversary of the September 11 attacks. (AP Photo/Mark Lennihan)
September 11, 2011 8:41:44 AM PDT
ERIC TUCKER Associated Press
SANTA ANA, Calif. (AP) - September 11, 2011 --
It's early in the morning on the 10th anniversary of the nation's worst terrorist attacks, and John Wayne Airport starts to hum with the mundane rituals of airline travel.