“Not much we can do about really.”
I remember some large object that was very close to Earth - I’m thinking it came closer than the moon. NASA saw it too - as it was going away from us!
Happens more times than you’d imagine. But what’s the point in announcing it all the time? Would only serve to get millions of folks all riled up and near chaos breaking out. Trust me, when a meteor or an asteroid is on target to hit us we’ll be told. And God help us all.