We see the problems State Department has defending its ambassadors and others in the Middle East. We have well over 100,000 Iranians, Afghanis, as well as other Moslem and Arab speaking people in the DC area. I have no idea how many of them are "safe' but they are all relatively easy to compromise.
Could be that we might be doing business without any of the top officers of state sometime in the next 4 years.
So, the question could well be ~ who, in Nebraska, is going to take over and when will we run the next election.
Terrorists would never do that because those people and institutions are their allies.