"The Yagi bombs were used numerous times in attacks against the Chinese from May, 1942 to August, 1943, and are estimated to have ultimately killed more than 400,000 people there, making them potentially more deadly even than the atomic bombs in Hiroshima and Nagasaki in Japan."<p>P.S. i took out "5 devious ways" from the title because I just can't stand that kind of bait language. I skip any article title titled that way, and this one is actually worth a read.