By Jim Sciutto
The names involved in the escalating crisis in Ukraine - Crimea, Sevastopol, Simferopol - make it sound far away and far removed from America's allies and its interests. But the tensions there in fact hit very close to home for the United States.
First, Ukraine is not a distant empire but an integral part of Europe. Its capital, Kiev, is just a short flight from cities Americans visit all the time: Rome, Frankfurt, Paris.