In the face of a growing epidemic of heroin misuse in the United States, the White House announced on 17 August a $13.4m (£8.6m, €12m) initiative to promote law enforcement and public health programs in areas where misuse of heroin and prescription opioids has surged.  The funds will be parceled out to programs in areas that have been determined to be critical drug trafficking regions, designated “high intensity drug trafficking areas” (HIDTAs). There are currently 28 such areas in the 48 states, Puerto Rico, the US Virgin Islands, and …