If they are thinking that there is damage done to the lungs of young people, that might not heal completely, this is very upsetting and frightening. If smoking lungs can replenish in time, or so they were saying, why not this one? I have felt all along that this was a biological weapon, made in that lab, with the intention of destroying the U.S. some day. Nothing has changed my mind, after looking back eleven years, at some of the meeting that were held in China in reference to that goal.