Killing of survivors sparks outrage – but entire US ‘drug boat’ war is legally shaky

Pentagon's Law of War manual clearly prohibits attack, but justification for whole campaign also faces tough questions

Graphic depictions of two survivors being killed by a second US military strike on an alleged Venezuelan drug ferrying boat have provoked outrage where previously there was none - or at least relatively little.

A firestorm of controversy has greeted a recent Washington Post report which suggested that a deadly attack on a vessel carrying 11 people in the Caribbean was followed with a second assault after the initial strike failed to kill everybody onboard.