The explosive-laden quadcopter skimmed above the rooftops of southern Lebanon, navigating with precision between bombed-out buildings and along dirt roads. The drone gave its operator a clear first-person picture of its target: an Israeli tank with soldiers standing nearby.
At the top of the picture, in white letters, were two words.
“BOMB READY”
The quadcopter is a fiber-optic drone, experts say, a weapon Hezbollah has increasingly used with deadly accuracy. The drones are difficult to stop and even harder to detect, giving their operators a high-resolution view of the target without emitting any signal that could be jammed.
The drones are “immune to…

