Niels Harrit and 8 other scientists found nano-thermite in the dust from the World Trade Center.

He is interviewed on danish TV2 News.

People can see a full transcript, news, forum and the video in high quality here:
http://agenda911.dk/article.php?story=nanothermite_tv2news

Another site in danish is encouraging people to stand forward demanding a new investigation here:
http://www.i11time.dk/

The full report from the scientists can be found here:
http://www.bentham-open.org/pages/content.php?TOCPJ/2009/... (less info)