Shadowy modified Boeing 757s, Doomsday planes, and business jets almost always follow the President.

Add Yahoo as a preferred source to see more of our stories on Google. P 38 Photo12 Universal Images Group Getty Images Revolutionary futuristic warplanes were developed in the Second World War. To ...

Revolutionary futuristic warplanes were developed in the Second World War. To prevent the enemy from learning the secrets of these new combat aircraft, they were developed and test flown in strict ...