(4th LD) U.N. Security Council unanimously adopts harshest-ever sanctions on North Korea

(ATTN: UPDATES in para 14 with European countries welcoming resolution, ADDS remarks from U.S. ambassador to UN at bottom) By Chang Jae-soon WASHINGTON/NEW YORK, March 2 (Yonhap) -- The U.N. Security Council adopted the harshest-ever sanctions on Nor