[From "The Nashville bomb"]
Pretty much everyone agrees that the bomb at the AT&T building is most likely somehow related to the post-election conflict. Some see it as a successful attack on the NSA's cybersecurity infrastructure, other rumors suggest that it was a failed attack that was interrupted. Either way, the bombing, combined with the shootings in Miami, Texas, and Portland, appear to suggest that the anti-Trump forces are getting increasingly desperate as the Trump team proceeds with its operations.
The mayor of Nashville's reaction was certainly strange. He looks and sounds relieved, as well as inappropriately amused by the bombing.
This is not a bad time to make sure that you've got two weeks of supplies prepared and on-hand, and to minimize your public exposure. War is already being waged inside the United States, and because it is being fought by a wide spectrum of means by an unknown number of allied factions on both sides, it's very difficult to know where the hot zones are.