Voice of AmericaUS Warns of 'Critical Time for Humanity' at Tense Security ConferenceVoice of AmericaDozens of the world's political and military leaders, along with thousands of politicians, journalists and security experts descend on southern Germany every year for the Munich Security Conference. The stated aim is to bring allies and adversaries ...US Calls for Action to Halt Iran's Growing 'Network of Proxies'U.S.