Senior administration officials scrambled Tuesday to quell frustrations expressed by lawmakers about a lack of timely information concerning several flying objects and a Chinese spy balloon shot down over the past two weeks. 

In a classified briefing on Tuesday, the officials offered an update on the three aerial objects shot down Friday afternoon and last weekend. Separately, officials said they believed the objects were not threats to national security and were benign balloons. 

It’s unclear just how much the briefing calmed lawmakers, as senators say they didn’t get answers to several questions, including who launched the objects that were shot down in recent days, whether they were military or commercial vehicles and what they were doing in the sky.   

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