German chancellor Angela Merkel arrives in Washington. She'll meet senators and, on Friday, will sit down for talks with President Obama. On the agenda are sanctions against Russia. The U.S. is urging Germany and Europe to be tough, but Europe's energy dependence on Russia may be an obstacle. Also, we look at how LinkedIn has managed expectations as it weathered the broader tech downturn and why it seems to fly under the radar when compared to other firms in its sector, namely Twitter and Facebook ahead of its earning release on Thursday.