FILE - In this Sept. 11, 2001 file photo, as seen from the New Jersey Turnpike near Kearny, N.J., smoke billows from the twin towers of the World Trade Center in New York after airplanes crashed into both towers. Families of the victims of the worst terror attack on the United States in history gathered Wednesday, Sept. 11, 2013, to mark their 12th anniversary with a moment of silence and the reading of names. The Sept. 11, 2001 attacks in New York City and Washington killed almost 3,000 people and lead to a war in Afghanistan. (AP Photo/Gene Boyars)