"The target is in sight, the target is in sight, " the transcript shows one of the Cuban pilots radioing back to his headquarters.

CNN: Cuban pilots cheered as planes exploded

On Saturday, an electronic tag programmed to pop off after 30 days floated to the surface and began radioing data to a research lab.

NPR: Released Great White Shark Located

Those rescued escaped the ship in two lifeboats, radioing a distress call Monday morning to the Coast Guard before abandoning ship, said Coast Guard spokesman Lt.

WSJ: Heavy Seas Claim Replica of HMS Bounty

Freudenberg apparently misled his company's communications center that he had adequate fuel for the mission, radioing from the hospital that he had 45 minutes of fuel when he had only 30 minutes.

CNN: Pilot texting a factor in deadly copter crash

But some security researchers imagine a less sensational, if equally troubling possibility: Hundreds or thousands of aircraft radioing their approach to an air traffic control tower, and no way to sort through which are real and which are ghost plane signals crafted by a malicious hacker.

FORBES: Next-Gen Air Traffic Control Vulnerable To Hackers Spoofing Planes Out Of Thin Air