一 | The balloons would be designed to operate in the stratosphere between altitudes of 60,000 to 90,000 feet (18,300 to 27,400 meters) and would be integrated into existing surveillance and early warning systems, the report said.,The Defense Department spent a relatively modest total of $3.8 million on initial research into the balloons surveillance project in fiscal years 2021 and 2022, the report also said.,However, this sum is now being expanded to $27.1 million in fiscal year 2023, the report added, citing official documents.,The unmanned balloons would be operated using Artificial Intelligence (AI) algorithms and could supplement vastly more expensive surveillance satellites, according to the report.,On June 29, a US hypersonic missile test in the state of Hawaii failed because of a malfunction during the launch. It was the second unsuccessful attempt to test hypersonic missiles under the Conventional Prompt Strike program. The first launch failed in October due to a booster malfunction.。 LONDON -- A suspected Tunisian extremist accused of killing two Swedish soccer fans in a brazen shooting in Brussels has died of his injuries, Belgian police and a source from Belgium's anti-terrorism unit confirmed to ABC News.In what Belgian Prime Minister Alexander De Croo called an “act of terrorism” on Tuesday, the attack took place approximately three miles from the the Roi Beaudouin stadium where Belgium was playing Sweden to qualify for the Euro 2024 football tournament. The soccer match was suspended following the fatal shooting.Authorities confirmed early Tuesday that 45-year-old Abdesalem Lassoued, the suspected attacker, was shot and killed by the police in the neighborhood of Schaerbeek in downtown Brussels.Following Monday night’s attack, Belgium’s interior minister announced stricter border controls along Belgian borders while the suspect was still at large.This is a developing story. Please check back for updates.。
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