New Madrid EQ and bridges down.
Terrorists and bridges down.
Grids disrupted due to other causes besides EMP (read debates about that), such as hacking. Or above mentioned EQ.
Has the upcoming cyber attack in June, reported by the main lame media, been verified?
Didn’t we have some OWS types plotting to take down a bridge in Ohio? And a few years back there was a group called Green Anarchy promoting the destruction of bridges and other infrastructure.