A shooting in Washington prefigures tougher immigration policies

For months National Guard troops in America’s capital have been on “presence patrol”. This is a fancy way of saying they have been taking walks with an eye to deterring crime. Their message to the city’s residents has been that the streets are safe. A shooting on November 26th, blocks from the White House, dispelled that idea—and the notion that Washington’s tourists and officegoers are the ones who need protecting. Two Guard members were themselves the target