What's The Big Deal About Drones?

Since President Obama took office, the military's use of weaponized drones has ramped up to unprecedented levels.  Case in point: during just the first ten days of September, the U.S. carried out five drone strikes in Pakistan and Yemen, countries where America is not technically at war.  In this explainer -- presented in "stack" form -- Newsbound examines why drones have become a centerpiece of U.S. defense policy and breaks down the controversy surrounding them.