President Barack Obama told the UN Sustainable Development Summit Sunday that the U.S. would continue to lead the world in humanitarian aid, but activists say the U.S. is not doing enough when it comes to aiding Syrian migrants fleeing a civil war. Syria now requires food for 4.1 million people from the UN World Food Programme.
Russian President Vladimir Putin has said that Russia will aid Syria, but U.S. officials question his intentions. Obama and Putin will meet today at the UN to discuss options to avoid conflict. U.S. correspondent Michele Kelemen reports from the UN.