Very interesting article about the photographers behind the iconic images that were taken 20 years ago today - well worth a read imo.
http://lens.blogs.nytimes.com/2009/06/03/behind-the-scenes-tank-man-of-tiananmen/
http://lens.blogs.nytimes.com/2009/06/03/behind-the-scenes-tank-man-of-tiananmen/