>> thanks very much. that's our ian lee in kiev where those protest that is captivated us took place, and now we have the prospect of russian military intervention. the crisis in ukraine continuing to escalate. how might the u.s. respond? that's right after this. ♪ [ female announcer ] most of the time it's easy to know which option is better. other times, not so much. so it's good to know that mazola corn oil has 4 times more cholesterol blocking plant sterols than olive oil. and a recent study found that it can help lower cholesterol 2 times more. take care of those you love and cook deliciously. mazola makes it better. if it doesn't work fast... you're on to the next thing. clinically proven neutrogena® rapid wrinkle repair. it targets fine lines and wrinkles with the fastest retinol formula available.