The threat posed by Greece beyond its borders may have diminished but efforts to agree an economic reform program to free up bailout funds and avert default will capture world attention this week. Euro zone finance ministers meet in the Latvian capital Riga on Friday with both sides saying time is running short to keep Greece afloat. Germany said last week it was unrealistic to expect euro zone countries to be able to pay out a new tranche of aid this month. “No one has a clue how we can reach agreement on an ambitious program,” Finance Minister Wolfgang Schaeuble said.