The Space-Air-Ground Integrated Network (SAGIN) framework is a crucial foundation for future networks, where satellites and aerial nodes assist in computational task offloading. The low-altitude economy, leveraging the flexibility and multifunctionality of Unmanned Aerial Vehicles (UAVs) in SAGIN, holds significant potential for development in areas such as communication and sensing. However, effective coordination is needed to streamline information exchange and enable efficient system resource allocation. In this paper, we propose a Clustering-based Multi-agent Deep Deterministic Policy Gradient (CMADDPG) algorithm to address the multi-UAV cooperative task scheduling challenges in SAGIN. The CMADDPG algorithm leverages dynamic UAV clustering to partition UAVs into clusters, each managed by a Cluster Head (CH) UAV, facilitating a distributed-centralized control approach. Within each cluster, UAVs delegate offloading decisions to the CH UAV, reducing intra-cluster communication costs and decision conflicts, thereby enhancing task scheduling efficiency. Additionally, by employing a multi-agent reinforcement learning framework, the algorithm leverages the extensive coverage of satellites to achieve centralized training and distributed execution of multi-agent tasks, while maximizing overall system profit through optimized task offloading decision-making. Simulation results reveal that the CMADDPG algorithm effectively optimizes resource allocation, minimizes queue delays, maintains balanced load distribution, and surpasses existing methods by achieving at least a 25\% improvement in system profit, showcasing its robustness and adaptability across diverse scenarios.

White House National Security Communications Advisor John Kirby responds to more questions over the aerial systems on'The Story.' White House National Security Communications Advisor John Kirby maintained that the government still lacks definitive answers regarding the nature of reported drone sightings as public frustration intensifies. "Many of the corroborated sightings have turned out to be piloted aircraft. I didn't say all of them, and what I said was those are the ones we were able to corroborate," Kirby said on "The Story." "There certainly is ones that we have not been able to, and we don't know the answer to it, and I strongly recommend that for folks that are seeing these things and documenting them to share that as they can with the Department of Homeland Security and the FBI." In a Wednesday letter to Biden, New Jersey Gov. Phil Murphy asked the president for more federal resources to address drone sightings, noting that the federal law limits the ability of state and local law enforcement to counter drones.

White House national security spokesman John Kirby addressed the sightings of'drones' over New Jersey's skies, denying that any evidence suggests a foreign adversary is responsible. An uptick in alleged drone sightings along the East Coast touched off a flurry of panicked calls for investigation on Friday from residents and state lawmakers, even as public officials stress the aircraft in question are, in fact, being flown lawfully, and a retired port authority aviation expert tells Fox News Digital that fears are overblown. The drone complaints began pouring in last month in New Jersey, where witnesses and residents first began reporting drone sightings off of coastal areas, including off of Cape May, a scenic town located outside of Atlantic City. More recently, lawmakers in New York, Connecticut, Pennsylvania and Maryland have reported new alleged drone sightings in their home states, with some witnesses alleging the aircraft in question have been the "size of cars" or seen flying above sensitive infrastructure or in restricted airspace. New Jersey Gov. Phil Murphy, a Democrat, told reporters on Friday he had written to President Biden to share his concerns about the fresh reports of unmanned aircraft systems (UAS) sightings in New Jersey airspace, and called for more federal resources to investigate the issue.

Residents and officials from multiple US states are demanding answers about mysterious drone sightings that have been blamed on everything from foreign governments to alien UFOs. Numerous'SUV-sized' craft first appeared in New Jersey in mid-November, and have since spread to New York, Pennsylvania and Connecticut. Drone sightings have also been reported in states such as Texas, Oklahoma and California as well as foreign countries such as Germany. But it's unclear whether these reports are related to the activity plaguing the Northeast. In New Jersey, the drones sometimes appear in groups and often remain in the same place for hours at a time, according to eyewitnesses.

Satellite images have spotted the Iranian'mothership' linked to the mysterious drones in New Jersey. The Shahid Bagheri drone carrier was last seen at its berth in the Iran Shipbuilding & Offshore Industries Complex on November 12, but an image taken 18 days later showed its docking station empty. That is around the same time New Jersey police started to be inundated with sightings of drones in the skies, flying in clusters and acting strangely. New Jersey Republican Rep Jeff Van Drew claimed this week there was'circumstantial evidence' that Iran's ship was releasing the drones from America's East Coast. Van Drew said that Iran made a deal with China'to purchase drones, a mothership and other technologies' for the drone attack on the US, a theory the Pentagon has dismissed.

New Jersey resident Kristen Cobo captures video of approximately 8 suspected drones over a farm near her home on Dec. 12. Drone experts have little idea what the dozens of drone sightings over New Jersey could be, but have ruled out the possibility that they might be the work of a classified government program. They say the lack of a clear image or any residual hardware makes it difficult to make any guesses. "Until something is found, it's really difficult to say," said Brett Velicovich, Fox News contributor and CEO of Expert Drones. "We haven't seen any clear images."

You'd probably notice if the car that cut you off or pulled up beside you at a light didn't have a driver. In the UK, self-driving cars are still required by law to have a safety driver at the wheel, so it is difficult to notice them. But car companies have been testing automated vehicles on UK roads at least since 2017. Self-driving cars use Artificial Intelligence (AI) technology to steer themselves and navigate around obstacles. This technology is being introduced in many different ways, for example in cameras that detect whether people are speeding or using mobile phones while driving.

A spectre is haunting the United States--the spectre of drone warfare. Since the middle of November, unidentified unmanned aerial vehicles have lit up the skies above New Jersey, startling residents and baffling military and government officials. The US Army's Picatinny Arsenal research and manufacturing facility in the state's Morris County reported 11 confirmed instances of mysterious drones illegally entering its airspace since the middle of the month, while a dozen drones were spotted hovering over US Naval Weapons Station Earle in Monmouth County in early December. Similar sightings were reported in at least six other counties throughout the state; according to the Coast Guard, a group of drones even followed one of the service's vessels "in close pursuit" near a state park. The spate of drone sightings in the skies above New Jersey have caused alarm among state lawmakers, prompting one to call for a "limited state of emergency … until the public receives an explanation" regarding the source of the unidentified drones.

Reports of mysterious drone sightings in New Jersey have now spread to multiple states, as residents and local officials demand answers from the US Government. Numerous'car-sized' drones have been seen hovering throughout the state since mid-November, sometimes appearing in groups and often remaining in the same place for hours at a time. The first drone sightings appeared over the US Army's Picatinny Arsenal and over President-elect Donald Trump's golf course in Bedminster on November 18. But reports of varying levels of credibility have now spread to at least 12 counties throughout the Garden State, as well as eastern Pennsylvania and Orange County, New York. The FBI and other agencies are investigating, but the Department of Homeland Security said Wednesday: 'We have no more information as to where these drones are coming from, where they're launching from, where they're landing.'

We've lost the ability to protect our own airspace. We have a complacent and incompetent Biden administration in charge that has set our drone industry back years. President-elect Donald Trump's inauguration can't come soon enough. We need an overhaul of our drone defenses nationwide. Our national security infrastructure is not set up to defend against what's coming.