"This is theft on an international scale, when under the cover of troops, one country has just come and robbed a part of an independent state."—Ukraine's Prime Minister Arseniy Yatsenyuk after losing the Black Sea peninsula of Crimea to Russia.
"When something like this happens that confounds us, we're offended by it, and we're scared by it. We had the illusion of control and it's just been shown to us that oh, folks, you know what? A really big airliner can just vanish. And nobody wants to hear that."—Ric Gillespie, a former U.S. aviation accident investigator and author, on how Malaysia Airlines Flight 370 can still be missing after 10 days.