Both the U.S. and the EU are imposing sanctions on Russia. But they're targeting different Russians.

New sanctions take aim at the head of a Russian oil company in which BP has a big stake. BP’s stock fell after new sanctions were announced.

The Russian government faces many costs including the bill for infrastructure upgrades, increased salaries and pensions for officials.

Growth has slowed and could drop to zero within months, Russian politicians admit.

"Ukraine needs help from abroad, that's what the interim government knows."

Will China interfere with efforts to isolate Russia? And, teens are now spending as much on food as clothes

It may not be so easy to cut off Russia.

Tensions in Ukraine impact American-Russian space partnership.

Christine Lagarde on Congress' IMF vote: "Not exercising that leadership is a mistake."

President Obama continues his tour of Europe.