So which is it - is meddling in the local affairs of others fine as long as its government action? Why so much disdain in principle if it's individuals? Would rachael corrie's death have been more objectionable if she were demonstrating in alignment with military policy, for example, protesting outside Hamas headquarters?
See if you get this:
If I send a man somewhere to risk his life, I am, to an extent, responsible for these risks.
If he goes off on his own, with no request or encouragement from me, I cannot be held responsible in any way, shape, or form.
Yes, it might be better to help that man out, but I am certainly not duty-bound to do so.
Lots of U.S. citizens are arrested and put in prison annually abroad for doing things that are not illegal in the US, or because due process in the countries they're doing it in works differently than in America. They are neither protected by the US government
nor would it be feasible for the US to protect anyone who brings upon himself the wrath of a foreign government - it is only when the government is tyrannical (like Iran) that this bring out public outrage.