The article is a few years old—and that is China.
The notion that we and Russia do not have the capability to deploy such weapons is absurd on its face.
If they are not deployed it is solely because there is no strategic or tactic benefit in doing so.
The technology is old at this point.
You changed your argument from 'they are deployed' to 'the capability to deploy exists'
No point in my continuing if you cant concede that.