Here's why the feds are freaked out about a drone attack

U.S. officials sent out a warning after Venezuelan President Nicolas Maduro was attacked with explosive drones in a failed assassination attempt. The Aug. 4 attack targeted Maduro while he was giving a speech in Caracas. He was unharmed but seven soldiers were hurt. It raised concerns worldwide that commercial drones could be used to harm people.  SEE ALSO: A hacker tried selling stolen military drone documents for $200 ABC News obtained a bulletin from the FBI, Department of Homeland Security, and National Counterterrorism Center officials detailing that concern. The bulletin was issued earlier this week.  Read more...More about Security, Drones, Attack, Safety, and Venezula