> Even if you believe the dope itself to be no great national security threat, that's just their payload today, maybe next time they'll smuggle in a nuke or whatever.

You're saying it's fine that they're killed for something they could "maybe" do in the future? Without even seeing any evidence that they're doing what they're accused of today? Have there been instances in the past of drug smugglers moving into the nuclear warhead smuggling game?