The U.S. Embassy in Kabul said Wednesday the federal government and military cannot ensure the safe passage to the Kabul airport after Taliban extremists took over the capital as video footage shows throngs of people trying to enter the facility. “The United States government cannot ensure safe passage to the Hamid Karzai International Airport,” the U.S. Embassy wrote in a security alert issued on Wednesday, adding that “the security situation in Kabul continues to change quickly, including at the airport.” Meanwhile, the embassy said that a large number of individuals have registered for flights out of Afghanistan, while “space on these flights is available on a first-come, first-serve basis.” Some White House officials have estimated that as many as 10,000 Americans remain in Afghanistan. More than 80,000 Afghans, including those who worked with the U.S. government and could face Taliban reprisals, are awaiting approval to escape. At the same time, Defense …