[fwdude]

We should have some type of a countermeasure for this ready. We have the technology now to do it.

Uh, no, we don't.

The vast majority of NEO's are not seen until the last minute.

Even the ones we know about.

https://www.youtube.com/watch?v=4Wrc4fHSCpw&t=615s

[HereInTheHeartland]

I’m not a rocket scientist.
However it would seem we could develop and deploy a system that could deflect these.
Way better use of some funds than much of what we spend money on