Finance leaders from the Group of 20 major economies shared their concerns Saturday over escalating global trade friction stemming from U.S. protectionist measures as they met in Buenos Aires for a two-day meeting.Following Saturday's session, a Japanese government source said such concerns were expressed by most participants, while Japanese Finance Minister Taro Aso said he criticized the United States at the meeting for its recent spate of moves to increase tariffs on a broad range of imports."Inward-looking policies would benefit no country," Aso told his G-20 counterparts, according to …READ FULL ARTICLE