That is correct, and for clarification farms. Is it right, most certainly not. Is it something that has reached the level that the US should take action on? Nope.
Action? You mean like sending in ground troops or droning targets? Certainly not. How about sanctions? Ehh...probably not yet. What about a strongly worded letter, a visit by the SoS to the PM (or whatever they have down there)? How about it not being shrugged off because they haven't suffered sufficiently to exact the appropriate amount of flesh to balance the scales?