Certainly doesn't worry me
Obviously a weapon like this and our own MOAB are physically huge weapons that can only be deployed by large military aircraft or missiles. If we get to a point where one of these would be used against us, I'd say the use nukes is on the table as well.
I'm certain we have an equivalent that just hasn't seen the light of day.
What would bother me is if someone developed the technology where one of these could be placed in let's say - a suitcase?
All in all though I just can't applaud the creation of any new destructive weapon by any entity. Ultimately they'll always be used to kill and destroy.
Art
