Anson Cheung says the shooting deaths of two international graduate students near the University of Southern California made headlines back home in Hong Kong, unnerving his parents.

CAMP DAVID, Maryland (Reuters) - World leaders backed keeping Greece in the euro zone on Saturday and vowed to take all steps necessary to combat financial turmoil while revitalizing a global economy increasingly threatened by Europe's debt crisis. A summit of the G8 leading industrialized nations came down solidly in favor of a push to balance European austerity - an approach long driven by German Chancellor Angela Merkel - with a new dose of U.S.-style stimulus seen as vital to healing ailing euro-zone economies. But it was clear that divisions remained. ...

A blind Chinese legal activist who was suddenly allowed to leave the country arrived in the U.S. on Saturday, ending a nearly monthlong diplomatic tussle that had tested U.S.-China relations.