Is the United States of America Ready for a Balloon EMP Attack?

China's recent balloon fly over the United States is clearly a provocative and aggressive act. It was most likely a type of dry run meant to send a strategic message to the United States of America. EMP experts have warned that China and other nations, North Korea, Iran, have programs to hit the U.S grid with electromagnetic pulse weaponsThat would cut the chord for a year or longer. The Eastern grid of the United States generates 75% of U.S. electricity and supports most of the population. Virtually any nuke detonated anywhere over the Eastern grid will collapse the entire Eastern grid,. Not just the area where the EMP exploded because of cascading failures that will ripple outward.