IAEA chief meets Putin over nuclear safetyJapan offers $20m to IAEA during agency's head visitWang Yi: U.S. must be rational about ChinaForeign Ministry helped thousands of overseas Chinese, Wang saysASEAN voices opposition to taking sidesU.S. using Taiwan as 'pawn', says spokespersonXi emphasizes no letup in drive to combat air pollutionPeaceful principles playing key role in intl relations, FM saysNY tightens security in subways as crimes riseForeign Ministry helped thousands of overseas Chinese, Wang says