可能一直都有提供，美國不知道而已。Youtube上有個博主，全家從上海飛佳木斯，到達機場上空被要求拉上窗簾不得看

所有跟帖： 

• Why close the curtain? What was there to see at the airport? -nancy_002- ♂ (949 bytes) () 02/19/2023 postreply 20:19:13

• Unknown。Possibly weaponry smuggling. -交易員- ♂ (0 bytes) () 02/19/2023 postreply 20:29:12

• I see. Hope CCP can say no to Putin this time and help to pu -nancy_002- ♂ (91 bytes) () 02/19/2023 postreply 20:31:56

• 可能嗎，上空肉眼都能發現的交易還想躲過衛星 -aluminiums- ♂ (0 bytes) () 02/19/2023 postreply 23:42:00