Of all the methods of terror deployed by the Assad regime and Russia during the Syria war – ranging from barrel bombs to chemical weapons \- perhaps none have been so deliberately destructive and callous as double-tap strikes. The aim of the strikes – targeting the same site twice or multiple times – is to kill or maim as many first responders and medics as possible, as well as destroy civilian infrastructure and spread terror among the civilian population in opposition areas. In that respect, it worked. Double-tap strikes contributed to the flight of millions across Syria’s borders with a cri…