The power failure and block box corruption could be incompetence and shoddy maintenance. Like in Atlas Shrugged, “a copper wire broke”.
Could be.
But then again, maybe not.
On one hand, accidents happen.
On the other hand, if someone wanted to send a message to the pols in Washington, that bridge would be a perfect target because it’s going to directly impact the people in DC on a daily basis for the next several years. .