Do we really want articles like this describing capabilities our opponents should be working really hard to steal or block?
Do we really believe articles like this? How did the guy film this on his phone or whatever device if the US knocked out “all” signals especially one that makes a second hand on a mechanical clock go fast but not the minute hand.
In this day and age it’s hard to keep secrets.
Best one can do is the old fashioned shock and awe. In this case they were awed that they couldn’t do anything.