Why did gravity #scientist Dr. Ning Li disappear?

Transcript

when I was asking around about her, like in preparation for this story, that was the only time I've ever had someone from Redstone call me out of the blue and say, "Hey, I hear you're asking questions about this." And I I told like barely sociable this we ended up becoming friends and I think like people like hear that they think that like uh I received that phone call and they're trying to like threaten me like physically. So like I I think the message they were trying to send was like if we even get a whiff that you're trying to figure out classified information is that you're you're never going to bail out on Redstone again. obviously like you know uh so I don't I don't think it was like a like a a a threat on my life like but it was really like weird just to get a call from them like and say hey we know that you're working on this story before I tell them about