Fluorescent Green Smoke at Ground Zero on the Afternoon of 9/11

Hmmm, does thermite give off green fluorescent smoke?

Valentin, an NYPD detective, got to Ground Zero on the afternoon of 9/11. "It looked like winter out, like dust devils all over the place," he said. He also recalled "seeing fluorescent green smoke, the most beautiful green you could see. It was really eerie."

Thanks to AP for the link.