(LEAD) N.K. party official Choe returns to public eye after 3-week hiatus
(ATTN: ADDS photo)
SEOUL, Feb. 23 (Yonhap) -- Choe Ryong-hae, a senior North Korean party official, has returned to public view after a three-week hiatus, Pyongyang's media report showed Thursday, amid rumors that he may have visited China over the co