Source: WSJ 3/31/18.
Gun related deaths per capita and and states with “red flag” laws, that allow law enforcement to take guns away from a person who is deemed dangerous to him/herself or others.
Source: WSJ 3/3/18
Building toxic chemical plants in flood prone areas is another externality. Flood prone land is cheaper to buy, but costs the manufacturer “saves” are in fact transferred in space and time to neighbors and downstream water users when the next flood spreads the toxic chemicals far and wide.
Houston has a particularly heavy concentration of these risks, but industrial farms with sewage settling ponds and mines with settling ponds adjacent to water routes are scattered throughout the United States.
Source: NYT, 2/10/18.
Source: WSJ 10/27/16.
Solar power has more jobs across the country, but coal is a more important employer in some states.
Source: NYT 4/26/17.
Source: xxx, 1/10/17.
I have cavilled about the insidious effects of gerrymandering elsewhere. Some states have a bipartisan commission draw voting district lines. Here is a map of computer defined electoral districts.
Source: Seattle Times 11/18/17.
Source: NYT 10/22/17.