WASHINGTON —A two-foot-long drone apparently flown by a hobbyist crashed on the White House grounds Monday in an extraordinary, if unintended, breach that raised fresh questions about the president's security - and a growing threat from the sky. A man later came forward to say he was responsible for the mishap in the middle of the night and hadn't meant to fly the drone over the complex, officials said. "Initial indications are that this incident occurred as a result of recreational use of the device," said Secret Service spokesman Brian Leary.
If you think about it the white house can use some Anti-aircraft Weapons encase of emergencies. This is something i think it has already but not against drones i am guessing. Great Article i always read when you post news articles very informative.