Chinese Foreign Ministry spokesperson Mao Ning said that China will “resolutely safeguard its legitimate rights and interestsâ€ in the shooting down of what China maintains was a civilian airship used for weather studies. China’s stance has changed significantly since last week when Beijing expressed “regret” for the balloon accidently entering American airspace. China accuses the U.S. of overreacting and violating “the spirit of international law and international practice” when it shot down the balloon. Mao also said the balloon “belongs to China” when asked about the U.S. recovery of the balloon debris. Meanwhile, Fox News is reporting that China has issued an apology to Costa Rica for a similar balloon unintentionally flying over that country’s airspace.