Unity for now, but Obama and Merkel hint at future discord

Angela Merkel, the German chancellor desperately working to reach a diplomatic accord ending unrest in eastern Ukraine, continued her efforts at the White House Monday, urging President Barack Obama to forestall sending lethal aid to Kiev.

Her efforts appeared effective; at a midday press conference, Obama said he hadn't yet decided whether or not to send arms and equipment to besieged Ukrainian troops in the eastern part of the country.

But both leaders hinted there could be disagreements to come on how to best end the unrest that has waged for months and so far claimed 5,000 lives. Obama left open the