Watching the US’s conflict with Venezuela unfold, many are left asking: Are we at war? While some Trump administration hawks have wanted the US to force Venezuelan President Nicolás Maduro out of office for years, the ostensible justification for the military buildup in the Caribbean — and the related ongoing campaign of strikes against alleged drug boats — is that the US is under siege from deadly narcotics pushed by Venezuelan “narcoterrorists.” Senior correspondent Joshua Keating breaks down