I've heard about how our infrastructure is vulnerable in this manner, but I had not heard about it in this much detail. It's intersting how the Chinese have infiltrated so many of our "secure" systems. If the Chinese ever feel that we are not of benefit to them, we are in a load of trouble.In any case, I thought this was an interesting video.http://www.cbsnews.com/video/watch/?id=5578986n&tag=related;photovideo