Greek, Ukraine crises loom over G7 summit

World leaders gathered for a G7 summit in the sun-drenched Bavarian Alps Sunday, their agenda clouded by the Ukraine conflict and the threat of Greece crashing out of the eurozone. German Chancellor Angela Merkel kicked off the day by treating US President Barack Obama to some traditional Bavarian beer garden hospitality, with frothy ale, pretzels and oompah brass music played by locals in lederhosen. While the two praised their countries' strong post-war friendship to cheers and warm appla