Yes, I understand that; however, embassies are often the targets of attacks because they are involved in issues that the citizens of that country feel are very much against their best interests.
We cannot hide behind the “diplomat/embassy” label while trying to undermine foreign governments and the will of local citizens.
[edited to add:]
What I’d really like to know (and what is really being covered up) is what, specifically, our “diplomats” in Libya were doing over the past ~18-24 months.