Germs, warfare
Since prehistoric times, wars have killed combatants and civilians — by weapons but also by infections. In addition to creating crowded, unsanitary conditions, wars expose people to bacteria and viruses to which they have no immunity.
http://www.veteransforcommonsense.org/?Page=Article&ID=3127
http://www.veteransforcommonsense.org/?Page=Article&ID=3127
Starmail - 30. Apr, 12:11