WTC workers scrawl graffiti of defiance, hope - Article Photos 7/12

This Jan. 15, 2013 photo shows graffiti left by Michael Chertoff, the former director of Homeland Security, on a steel column on the 104th floor of One World Trade Center in New York. Construction workers finishing New York's tallest building at the World Trade Center are leaving their personal marks on the concrete and steel in the form of graffiti. (AP Photo/Mark Lennihan)