A German ad campaign which features a sperm that resembles Mao Tse Tung has Chinese netizens and some government officials in a tizzy. The ad series also features Adolf Hitler and Osama Bin Laden in starring roles as the dreaded sperm.The irony is wonderful: Sperm increase the population, whereas the Hitler-Mao-Bin Laden trio sought, and are seeking, to diminish it --at least certain members of