Let's get to the dark side of the airplanes. I'm not going to tell you what would happened next if something went wrong with an airplane in a 1000 mile latitude. It's a catastrophic consequence, this is way the deaths in airplanes' accidents are so high. A minor problem in an airplane could take lives of hundreds of people in just a second. Another downside, which is a controversial issue between the developed countries, is using the airplane as killing machines, destructing cities and demolishing countries. I'm not against arming one country itself, it's about how a country should use this force correctly.