Regretfully the public is not willing to pay what it would cost for the redundancy and security that would be required to make the system less vulnerable.
That is also entirely applicable to the electric grid. A major EMP would be extremely expensive to protect against, particularly including acquisition and warehousing of spare transformers (the huge ones, not just the little “cans” on the sides of utility poles). It’s called “vulnerability.”
"Ye hear of wars in far countries, and you say that there will soon be great wars in far countries, but ye know not the hearts of men in your own land."