Unmanned aircraft are being used more often to fight wars in Iraq and Afghanistan.
The so-called drones are not only transforming the battlefield, but are also revolutionizing the defense industry, The Wall Street Journal reports.
Many of the drones are built here in San Diego at General Atomics and Northrop Grumman. The White House defense budget request for next year includes $3.5 billion for unmanned aircraft.
Drones can stay in the air for hours. And with no humans on board..that means less loss of life in some of the world's most treacherous terrain.
